Top 28 How Loud Is Suppressed 300 Blackout Best 228 Answer

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How loud is a 300 Blackout subsonic?

All of the subsonic ammo in our test averaged around 142 decibels, which is right in-line with testing done by Larson-Davis themselves. As a comparison, 142 db is about the same level as a firecracker going off, and that level of noise can harm your hearing.

Is a 300 Blackout subsonic Quiet?

300 Blackout subsonic is one of the quietest rounds to suppress, particularly when fired through a closed breech firearm like a bolt action or single shot rifle. There is no noise from the action or any created via the ejection process as noticed in a semi automatic firearm.

What is the dB of a 300 Blackout?

The average 10-round results were: Unsuppressed: 163.1 dB. Suppressed: 129.9 dB.

Is subsonic 300 Blackout effective?

Using M4 military standards, the max effective range of 300 AAC Blackout from a 16 inch barrel is 460 meters. From a 9 inch barrel (2050 fps): – 100 inches drop at 410 meters – 41 inches drift at 470 meters – 291 ft-lbs of energy at 625 meters, so 440 meter max effective range for a 9 inch.

Why is subsonic ammo still loud?

This is because the supersonic bullet is traveling faster than the speed of sound, which produces a cracking sound when it breaks the sound barrier. Since subsonic bullets travel slower than the speed of sound, they do not break the sound barrier and do not produce a supersonic crack.

Is 300 BLK worth it unsuppressed?

You don’t have an “issue” with your 300blk if it won’t run subsonic ammo UNSUPPRESSED! 300blk subs are POINTLESS to run without a can, they’re still loud, less effective and unreliable, with a can yes they are super quiet and badass.

How far away can you hear a suppressed shot?

The gunshot from a suppressed firearm will be more silent. Silencers reduce the range you can hear a gunshot to 20-60 meters.

Can you hunt with subsonic 300 Blackout?

Subsonic 300 blk is extremely underwhelming. I personally wouldn’t hunt with it. That said, I shot a whitetail doe once at 160 yards with a 130gr barnes supersonic load.

What is so special about 300 Blackout?

The . 300 BLK offers a wider range of projectile choices, thanks to the . 30 caliber bore, burns its full potential in a 9-inch barrel, and is a much better choice for hunting. It also has the ability to cycle both super and subsonic ammunition without modification.

Do subsonic bullets make noise?

Subsonic ammo is typically extremely quiet through a suppressor, mild recoiling, fun to shoot, and useful in hunting and self-defense applications.

How fast is subsonic 300 Blackout?

300 Blackout 190-Grain Sub-X® This is different: “Subsonic eXpanding.” This bullet is designed to expand at subsonic velocity, and that’s made possible via a hollow cavity flanked by extra-long grooves on the jacket. The cavity is capped and filled by a flat-nose polymer insert. Muzzle velocity is 1050 fps.

Does the military use 300 Blackout?

300 Blackout is a formidable ammo choice and is used by both the military and law enforcement around the globe! Everyone knows that the king of intermediate cartridges is the 5.56x45mm NATO round. There is an enormous number of guns chambered to fit it, and all of the major manufacturers of ammunition love it.

What is the best barrel length for a suppressed 300 Blackout?

The 16-inch barrel also delivers greater energy on impact regardless of the ammo type. Barrel twist rate matters as well, it’s another factor to consider when choosing barrel length and determining 300 Blackout effective range with your rifle. A 1:8 twist works best with the light-weight supersonic rounds.

What’s the best barrel length for a 300 Blackout?

A 16-inch barrel is the longest available barrel for the . 300 Blackout, and it is quite effective when it comes to long-range targets.

Do suppressors require subsonic ammo?

Suppressor users love shooting subsonic ammo primarily because it lacks the loud crack of supersonic loads. You probably won’t hear the difference without the suppressor, but if you put a can on your rifle you can easily perceive the difference in sound between supersonic and subsonic ammo.

What is the optimum barrel length for 300 blackout?

A 16-inch barrel is the longest available barrel for the . 300 Blackout, and it is quite effective when it comes to long-range targets.


Suppressed 300 AAC Blackout | How Quiet Is It? [Silencer Series Ep. 02]
Suppressed 300 AAC Blackout | How Quiet Is It? [Silencer Series Ep. 02]


How loud is suppressed subsonic 300 blackout? | The High Road

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  • Summary of article content: Articles about How loud is suppressed subsonic 300 blackout? | The High Road From my few (very few) outings around one, suppressed subsonic .300bo is probably about as close to true “hearing safe” as a person can get. As … …
  • Most searched keywords: Whether you are looking for How loud is suppressed subsonic 300 blackout? | The High Road From my few (very few) outings around one, suppressed subsonic .300bo is probably about as close to true “hearing safe” as a person can get. As … I have never been around anyone shooting a suppressed rifle. I am interested in it though. My only knowledge of what a silenced rifle would sound…
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How loud is suppressed subsonic 300 blackout? | The High Road
How loud is suppressed subsonic 300 blackout? | The High Road

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Subsonic Ammo: Bang Without The (Sonic) Boom – AmmoMan School of Guns Blog

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  • Most searched keywords: Whether you are looking for Subsonic Ammo: Bang Without The (Sonic) Boom – AmmoMan School of Guns Blog Updating Subsonic ammo is a useful addition to your ammo locker, especially if you own a suppressor or shoot 22LR out to long distances
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Subsonic Ammo: Bang Without The (Sonic) Boom - AmmoMan School of Guns Blog
Subsonic Ammo: Bang Without The (Sonic) Boom – AmmoMan School of Guns Blog

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300 Blackout: Shooting with Subsonic Ammo – Silencer Central

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  • Most searched keywords: Whether you are looking for 300 Blackout: Shooting with Subsonic Ammo – Silencer Central Updating One of the hottest new rounds to emerge in the past few years is 300 Blackout; this is a true dual-purpose intermediate sized cartridge that can be fired in…
  • Table of Contents:

What is 300 Blackout Ammo

Performance and Ballistics

Popular Comparisons

300 Blackout vs 556

300 Blackout vs 350 Legend

300 Blackout vs 223

Shooting 300 Blackout Ammo with a Suppressor

Is 300 BLK good for Hunting

300 Blackout for Deer Hunting

Closing Thoughts

Are Oil Filter Suppressors a Good Idea

Diagnosing Accuracy Problems

How to Buy a Suppressor

Shooting Down Seven Common Silencer Myths

300 Blackout: Shooting with Subsonic Ammo – Silencer Central
300 Blackout: Shooting with Subsonic Ammo – Silencer Central

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.300 BLK First Impressions

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  • Most searched keywords: Whether you are looking for .300 BLK First Impressions Updating Well, we finally got setup with a .300 BLK demo rifle and took it out this weekend to mess around with it.  I have to admit that this is a very fun round to suppress!

    To start out, we are just using the recommended load from AAC:

    Sierra 220MK bullet seated to 2.12″ OAL
    11.2 grains of A1680Magento, Varien, E-commerce

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.300 BLK First Impressions
.300 BLK First Impressions

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how loud is suppressed 300 blackout

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how loud is suppressed 300 blackout
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  • Summary of article content: Articles about Error 403 (Forbidden) It depends on the suppressor and the connection. Most reduce the measured decibles to around 125 to 130. The upper end of hearing safe. It’s a noticeable … …
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Lowest db at shooters ear with suppressor -300BlkTalk

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  • Summary of article content: Articles about Lowest db at shooters ear with suppressor -300BlkTalk I’m looking to build a rifle in 300 blackout with a dedicated suppressor and running only subsonic as I hear this is probably the quietest … …
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Lowest db at shooters ear with suppressor -300BlkTalk
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How Quiet is a Suppressed .300 Blackout, Really? – AR15.COM

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  • Most searched keywords: Whether you are looking for How Quiet is a Suppressed .300 Blackout, Really? – AR15.COM From the numbers I have seen, .300 BLK gets you down to around 120 dB. 9mm suppressed is around 125-126 dB. .45 ACP suppressed is around 135 dB. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.Firearms, AR-15, AR15, Weapons, Guns, Guns for Sale, LaRue Tactical, Magpul, Armalite, Trijicon, Stag Arms
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How Quiet is a Suppressed .300 Blackout, Really? - AR15.COM
How Quiet is a Suppressed .300 Blackout, Really? – AR15.COM

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Heard a 300 blackout through a suppressor today, not what I expected…??? – TexasBowhunter.com Community Discussion Forums

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  • Summary of article content: Articles about Heard a 300 blackout through a suppressor today, not what I expected…??? – TexasBowhunter.com Community Discussion Forums Even with my custom earplugs, his suppressed rifle still made me flinch every time … I shoot a 6.8 that is quiet, but still loud as a 22. …
  • Most searched keywords: Whether you are looking for Heard a 300 blackout through a suppressor today, not what I expected…??? – TexasBowhunter.com Community Discussion Forums Even with my custom earplugs, his suppressed rifle still made me flinch every time … I shoot a 6.8 that is quiet, but still loud as a 22. Heard a 300 blackout through a suppressor today, not what I expected…???, texas, bowhunt, bowhunter, bow hunt, texas deer hunting, texas deer hunts, deer hunting in texas, texas bowhunting, texas hunting, leaning arrowhead, Heard a 300 blackout through a suppressor today, not what I expected…??? The Other Side of the Ranch (Firearms)
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 Heard a 300 blackout through a suppressor today, not what I expected...??? - TexasBowhunter.com Community  Discussion Forums
Heard a 300 blackout through a suppressor today, not what I expected…??? – TexasBowhunter.com Community Discussion Forums

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Is 300 blk Suppressed REALLY that Quiet? – Calguns.net

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  • Most searched keywords: Whether you are looking for Is 300 blk Suppressed REALLY that Quiet? – Calguns.net Can 300 blk be suppressed to be as quiet as a 22lr? … louder than the bolt gun but still only slightly louder than a suppressed 22 pistol. Is 300 blk Suppressed REALLY that Quiet?, vbulletin,CA, guns, rifle,ar15,gun,forum,bbs,discussion,jelsoft,bulletin boardIs 300 blk Suppressed REALLY that Quiet? Centerfire Rifles – Semiautomatic or Gas Operated
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 Is 300 blk Suppressed REALLY that Quiet? - Calguns.net
Is 300 blk Suppressed REALLY that Quiet? – Calguns.net

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How loud is suppressed subsonic 300 blackout?

Times seem to be coming down, I’m betting 9 months for my F4 from Dec ’18, and 7 for my F4 from May ’19. Up until now I haven’t waited over 7 months, and my last one came in in Jan ’18 after exactly 5 months in jail.

The suppressed .300 BLK I’ve heard was at the range, so I had muffs on. Quiet but hard to give a comparison. Action noise from something like an AR will add a lot of sound at the ear over a bolt gun.

I can say that my .22 bolt gun with gemtec subs and a SiCo Sparrow on the front sounds like you dry fired it. Much quieter than my .22 Benjamin air rifle. .22 cans are a good starting point because the suppression per dollar ratio is very high, and everyone loves to shoot shoot them. .22’s with subs and a can are the only firearms I shoot without single or double ear pro on.

I personally love shooting my tuned .223 AR through my .30 can. It’s very pleasant with just plugs in, spits very little gas, and has the ballistics to reach out to fun ranges.

Click to expand…

Subsonic Ammo: Bang Without The (Sonic) Boom

Putting Subsonic Ammo To The Test

We’ve all heard the phrase “faster than a speeding bullet, but just how fast is a speeding bullet, anyways? Gun owners are very familiar with the sounds of a gunshot, but what sound does the bullet itself make as it heads downrange? You may own a suppressor, but what impact does the noise of the bullet in flight have on the noise of your shots? Let’s look at how subsonic ammo can answer all those questions.

First, a brief excursion into basic physics. The amount of force projected by any given bullet headed downrange is a function of the bullet’s velocity and weight. Factory-made ammunition conforms to standards laid out by SAAMI, the Sporting Arms and Ammunition Manufacturer’s Institute, which standardizes the specifications for any given type of ammo. This means that any given caliber can only produce so much force when it’s fired. Want more oomph? Fire a more powerful cartridge, and take the hit in noise and recoil as well.

Because the power of any given round is more or less set by the SAAMI standard, ammo manufacturers use lighter or heavier bullets to vary the velocity of their ammunition (Force = Mass x Acceleration: It’s not just a good idea, it’s the law!). The question then becomes, why would ammo manufacturers want to make slower rounds, such as subsonic ammo? Isn’t fast always better?

Slow(er) And Steady Wins The Race

Not necessarily. Let’s look at two reasons to use subsonic ammo in your firearm. The first is with a suppressor. A suppressor (or silencer, as they were originally called) is essentially a muffler that you put on the front of your gun. A suppressor reduces the noise from your gun by slowing down the escaping gases that are pushing the bullet out of the barrel. It also dampens the noise of the muzzle blast. However, it has no effect on any noise that the round itself makes as it heads downrange.

The second reason to use subsonic ammo has to do with the motion of a bullet through the air. Objects travelling near or above the speed of sound create a shockwave of compressed air in front of them. There is a loud crack when they break through that shockwave that we call a sonic boom, and it makes a lot of noise. Bullets are stable and predictable, by and large, when they travel supersonic. Things get weird when they start to slow down because of wind resistance and pass back through the shockwave of the sound barrier. Moving through all that compressed air affects the flight of the bullet, and it starts to tumble, throwing the round off-course and away from the intended target.

Why Use Subsonic Ammo?

In short, subsonic ammo is ideal for situations where you don’t want your ammunition to make more noise than the sound of your gun firing. It’s also useful in competitions such as Precision Rifle matches. It’s quite common at a Precision Rimfire match to see targets beyond where a standard .22LR round slows down and is no longer subsonic and starts to veer off target. Subsonic ammo is very useful when shooting 22LR at longer ranges because it allows your bullet to remain ballistically stable at ranges where supersonic ammo would slow down and start to tumble. This is why you’ll see that most, if not all, 22LR match ammo is subsonic, and does not break the sound barrier when fired.

With that in mind, let’s compare what subsonic ammo does compared to ammo that goes faster than the speed of sound. We’ll shoot one type of supersonic ammo and one subsonic ammo in three different calibers. To reduce effects of the noise of the muzzle blast from the equation, each of the guns will use a suppressor. The guns we’ll be shooting are a 300 Blackout pistol with a Sig Sauer suppressor, a 9mm Glock 19 with an Omega-K suppressor, and a Savage bolt-action 22 rifle with a CMMG suppressor.

Testing Subsonic Ammo

We’ll be shooting and comparing five rounds each of the following ammo:

Prvi Partizan 125 grain 300BLK FMJ supersonic

Sellier & Bellot 200 grain 300BLK subsonic

Winchester 124 grain 9mm NATO FMJ supersonic

Prvi Partizan 158 grain 9mm FMJ subsonic

CCI Mini-Mag 40 grain 22LR supersonic

Wolf Match 40 grain 22LR subsonic

We’ll also measure the velocity of each round by using a digital chronograph placed 10 feet away from the muzzle of our guns. This will help us determine if each round did in fact travel at supersonic or subsonic speeds. We will use a Larson-Davis LXT1-QPR sound meter to measure the noise of each round as it passes through the target. The meter will be placed one yard beside a target that is 55 yards away from the shooting position, similar to the setup that Larson-Davis recommends for firearms noise testing.

The conditions on our test day were as follows:

Temperature: 61 degrees F

Height: 30 feet above sea level (hey, it’s Florida…),

Humidity: 72% (Did I happen to mention Florida?)

In those conditions, the speed of sound turns out to be 1118.2 fps, or 762 mph. Let’s see how each type of ammo did.

Subsonic Ammo Test Results

Prvi Partizan 300BLK Supersonic (5 shots)

Average Velocity: 1979 fps / 1349.5 mph

Minimum Velocity: 1912 fps / 1303 mph

Maximum Velocity: 2020 fps / 1377 mph

Average Peak db: 166 db

Minimum Peak db: 166.7 db

Maximum Peak db: 165.3 db

Sellier & Bellot 300BLK Subsonic (5 shots)

Average Velocity: 898 fps / 612.3 mph

Minimum Velocity: 834 fps / 568.6 mph

Maximum Velocity: 986 fps / 672.3 mph

Average Peak db: 139.8 db

Minimum Peak db: 138 db

Maximum Peak db: 142.8 db

Winchester 9mm Supersonic (5 shots)

Average Velocity: 1226 fps / 836 mph

Minimum Velocity: 1204 fps / 820.9 mph

Maximum Velocity: 1248 fps / 850.9 mph

Average Peak db: 154.8 db

Minimum Peak db: 158.1 db

Maximum Peak db: 153.6 db

Prvi Partizan 9mm Subsonic (5 shots) Average Velocity: 944 fps / 643.9 mph

Minimum Velocity: 922 fps / 628.6 mph

Maximum Velocity: 958 fps / 653.2 mph

Average Peak db: 143.8 db

Minimum Peak db: 133.6 db

Maximum Peak db: 149 db

CCI Mini-Mag 22LR Supersonic (5 Shots) Average Velocity: 1226 fps / 836 mph

Minimum Velocity: 1204 fps / 820.9 mph

Maximum Velocity: 1248 fps / 850.9 mph

Average Peak db: 154.8 db

Minimum Peak db: 158.1 db

Maximum Peak db: 153.6 db

Wolf Match 22LR Subsonic (5 shots) Average Velocity: 1067 fps / 727.7 mph

Minimum Velocity: 1041 fps / 709.8 mph

Maximum Velocity: 1041 fps / 741.8 mph

Average Peak db: 144.4 db

Minimum Peak db: 146.2 db

Maximum Peak db: 141.1 db

There Was Supposed To Be An Earth-Shattering Kaboom!

All of the subsonic ammo in our test averaged around 142 decibels, which is right in-line with testing done by Larson-Davis themselves. As a comparison, 142 db is about the same level as a firecracker going off, and that level of noise can harm your hearing. However, it’s important to note that the 142 db was recorded by a sound meter placed just one yard away from the path of each bullet.

However, in the real world, we are not going to be one yard away from where the bullet is flying past us (at least I hope that is the case). Using subsonic ammo in a suppressed firearm makes very little perceivable noise. In fact, when we were testing the 22 subsonic rounds, the loudest noises we heard was the click of the firing pin hitting the back of the chambered round and the “thwack” of the bullet impact downrange.

More Noise Means More Hearing Damage

The 150 to 160 decibels from the supersonic ammo, is a big deal. Anyone who’s ever shot an unsuppressed firearm without hearing protection knows the ringing in the ears it causes, which is an indication that a serious hearing injury is headed your way. This is why we wear hearing protection at the range. After all, staying safe while shooting a firearm means keeping all of your body safe, including your hearing.

Subsonic ammo is not for everyone or for every situation. However, if you regularly use a suppressor or shoot 22LR at 100 or more yards, subsonic ammo is probably a good idea. Take your gun to the range and enjoy the shooting sports in a quieter sort of way.

300 Blackout: Shooting with Subsonic Ammo – Silencer Central

One of the hottest new rounds to emerge in the past few years is 300 Blackout; this is a true dual-purpose intermediate sized cartridge that can be fired in both subsonic and supersonic loads. It was designed to be used in AR-pattern rifles with only a barrel change to convert a traditional AR-15 rifle from 5.56 NATO. It has since become one of the most popular rounds to use with a suppressor.

This relatively new cartridge has been around a bit longer than some might think and has its share of fans and detractors, but 300 Blackout has more than proven itself as a hunting, defensive and target round in that time. It may not be the be-all and end-all cartridge, but for most shooters and hunters, 300 Blackout is worth taking a second look at.

Want to skip ahead in the guide? Use the links below:

What is 300 Blackout Ammo?

The 300 Blackout round has its roots in the 300 Whisper cartridge designed by JD Jones of SSK Industries in the early 1990s. Jones formed the brass from 221 Fireball cases expanded to take a .30 caliber bullet. By varying the load, lighter bullets could be fired at supersonic levels with the power of the Soviet 7.62 x 39 or used with heavier bullets at a subsonic level for use with a sound suppressor.

Unfortunately, the round was trademarked by SSK and other manufacturers were unable to manufacture barrels or even brass and dies for the round. The 1994 Federal Crime Bill and Assault Weapon Ban did not help the subsonic cause, either, as threaded barrels on semi automatic rifles made them subject to the ban. National Firearm Act laws governing the sales of silencers were also misunderstood at the time and silencer ownership was a mere sliver of what it is today.

It seemed as if the round was doomed to die in the “also-ran” wildcat category until the Federal Assault Weapon Ban was allowed to sunset in 2004 and a company called Advanced Armament Corporation (AAC) began to show interest in the 300 Whisper.

AAC was eventually bought out by Remington Defense and the two companies worked on the design as a potent new caliber that could address perceived shortcomings with the 5.56 NATO round.

Remington and AAC changed the design slightly by using trimmed and expanded 5.56 NATO brass as opposed to 221 Fireball or 222 Remington as the parent case. They normalized different load data and submitted the new cartridge to SAAMI (Small Arms Ammunition Manufacturers Institute) and CIP (Permanent International Commission for the Proof of Small Arms) for standardization and christened the new round 300 AAC Blackout by CIP and 300 BLK by SAAMI.

The improved design means that it will work with a standard AR15 or M16 bolt and magazines with the only real part change being the barrel. Another positive note is that 300 Blackout and the original 300 Whisper cartridge are completely interchangeable from barrels to reloading dies as well as reloading components and specifications.

As a result of its popularity we have even seen the retail price of 300 Blackout ammunition decrease over time. This is always a good sign with regard to the longevity of an ammunition cartridge in the market.

Performance and Ballistics

In its standard form as a subsonic round, 300 Blackout most closely resembles the 7.62 x 39mm round first used in the SKS and AK-47 rifles of the former Soviet Union. In its subsonic loading it has been compared with both subsonic 9mm and 45 ACP.

One of the main reasons that the US Military was looking for a replacement round for 5.56 NATO was the loss of energy and velocity by the 5.56 NATO round as it was fired through barrels that were increasingly getting shorter.

The 5.56 round was developed for use in 20” barreled rifles. Severe deficiencies were found when trying to make the military service rifle shorter. Additionally, the use of a suppressor dictated going to a shorter barrel as soldiers were finding full sized rifles becoming unwieldy with a 5” to 8” sound suppressor mounted on the muzzle. Another consideration here was the effect of the initial blast of unburnt powder and flash increasing wear on the initial baffle of a 5.56 suppressor.

300 Blackout was optimized to be fired through shorter barrels and even in supersonic loadings it did not have that initial blast problem. The round exceeded most military expectations for the caliber in both subsonic and supersonic renderings.

On the civilian side, 300 Blackout has proven to be a performer in the field for hunting and on the competitive shooting circuit.

SHOP SILENCERS

Popular Comparisons

Every new cartridge is often compared to an older one and 300 Blackout is no exception. These comparisons are both a good thing and a bad thing for a few reasons.

On the good side, hunters and shooters generally want an idea of how a new round will perform. Comparing 300 BLK to an existing round with regards to bullet weight, caliber, velocity and energy sets the stage.

So the 300 Blackout supersonic loads are compared to rounds such as 30-30 Winchester and 7.62 X 39mm. This gives a shooter an idea of what to expect recoil wise and the intended use of the round.

Another consideration for rifle shooters is often the size of the rifle’s action. While this was addressed initially by use of 300 Blackout in the AR-15 or M16 platform with regard to bolt face, magazine configuration, etc, it is also an important consideration for use in a bolt action rifle.

For the bolt action rifle shooter, action length is often an important consideration, as this can affect the weight of the rifle and its overall configuration for handling recoil. Typical bolt action lengths are referred to as short, long and Magnum. The long action is used for rifles chambered in calibers such as 30-06 Springfield. Magnum actions are intended for powerful belted magnum cartridges such as 300 Winchester Magnum, 459 Winchester Magnum or 375 Holland & Holland. The short action is intended for everything from 17 Remington up to 308 Winchester and this is the size needed for a bolt action rifle chambered in 300 Blackout.

The subsonic 300 Blackout loads are often compared to 45 ACP, 10 mm or 9mm subsonic rounds. This showcases the dual purpose of the round. The advantage of 300 Blackout is if the shooter wants an AR-pattern rifle or pistol that is easily suppressed, they can use a common magazine and typically only need to swap an upper receiver. Pistol caliber conversions for the AR platform often need different magazines, buffer assembles and other changes to make them effective and reliable.

Where it becomes a bad thing is that these comparisons rarely give the complete picture to the shooter or hunter and can actually be a disservice to 300 Blackout and to the round to which it is being compared.

300 Blackout vs. 556

The most obvious comparison for 300 Blackout will be made with 5.56 NATO. After all, this is the round it was intended to dethrone.

As we stated earlier, this is a disservice to both cartridges. The 5.56 NATO round has a longer range, higher velocity and some would say more inherent accuracy. In its supersonic loading, 300 Blackout shares similar characteristics with the 7.62 X 39mm round which has often been set up as the rival of 5.56 NATO for the past 60 years.

Terminal ballistics for both rounds as a military cartridge will be compared ad nauseum. A lighter bullet in the form of 5.56, by as much as two to 3 times the weight, travelling at 75% to 100% of the velocity has its advantages over the heavier and slower 300 Blackout. Yet some troops would say that a heavier and slower bullet may not have the penetration ability of the 5.56 but addresses the overpenetration issues noted by US Army Rangers and Infantry in operations in Somalia where the 5.56 required multiple hits on target to dispatch an enemy soldier, whereas the 7.62 x 39mm seemed more effective at stopping an enemy combatant with a single round.

One of the dangers of keeping both rounds in the same collection is that 300 Blackout will actually chamber in a 5.56 rifle. It cannot be safely fired from that platform without causing a catastrophic failure to the firearm and injury or possibly death to the shooter and those in close proximity.

For this reason, we recommend that if you shoot both calibers to incorporate some variables with regard to your shooting components and accessories. For example, use one type or color of a magazine for one round and a different one for the other. This can be taken a step further by loading 300 Blackout subsonic rounds in a different magazine size from the 300 Blackout supersonic rounds so that a supersonic round does not accidentally go through a pistol caliber or 300 BLK subsonic rated suppressor accidentally.

The key advantage here is that AR magazines are inexpensive when compared to just about every other platform out there. This is another inherent advantage of 300 Blackout.

It is not a bad idea to ensure that the upper receivers can be easily distinguished, whether by different optics, rails or colors.

300 Blackout vs. 350 Legend

When 350 Legend debuted, Winchester claimed it was the fastest straight wall cartridge ever released. Like 300 Blackout ammunition, it had the ability to be loaded to subsonic or supersonic levels and it would fit in a standard AR15 action and magazine. Some hunters speculated that it would sound the death knell for 300 Blackout due to the fact that hunters in some north eastern and midwestern states were limited to hunting deer with a straight wall cartridge.

As fine a cartridge as it is, 300 Blackout had the advantage in that it had more than a 10-year head start on 350 Legend. There are simply more barrels, magazines, rifles, pistols and other accessories dedicated to 300 Blackout as opposed to 350 Legend.

350 Legend certainly has the upper hand as a hunting caliber in states where bottleneck cartridges are prohibited for big game hunting and performs well on animals like deer and black bear, but it will not overtake 300 Blackout on the whole anytime soon.

The other disadvantage is the limited amount of .35 caliber suppressors made for the supersonic load in 350 Legend. Subsonic 350 Legend can be safely fired through most 9mm suppressors in the same manner as 300 Blackout subsonic.

300 Blackout vs. 223

While 5.56 NATO and 223 Remington are used interchangeably, they are not the same round. The 5.56 NATO is loaded to a higher pressure level than 223 Remington. Furthermore, 223 Remington is considered a commercial civilian use round, making it more suitable for hunting applications, not unlike the 300 Blackout supersonic load.

In this regard we often see more soft point, hollow point and general use hunting rounds in 223 Remington as opposed to 5.56 NATO. However, 223 Remington is considered more of a small game or varmint round, as opposed to a heavier round like the 300 Blackout.

Again, it goes back to the purpose of the round and shows how a long range varmint round, as was the original intent of 223 Remington, cannot be justly compared to a slower, heavier bullet like the supersonic 300 Blackout. 223 Remington is ideal for coyotes and prairie dogs at long range whereas 300 Blackout is more suitable for deer or black bear at shorter ranges.

Shooting 300 Blackout Ammo with a Suppressor

As we mentioned numerous times by now, 300 Blackout has a subsonic range of ammunition choices and makes for an excellent suppressor host. The advantages are two-fold in that if one sticks to strictly subsonic loads they can shoot through a suppressor rated for 45 ACP or 9mm. Should the shooter wish to shoot the supersonic round suppressed, a silencer rated for 308 Winchester will easily handle both supersonic and subsonic loads.

300 Blackout subsonic is one of the quietest rounds to suppress, particularly when fired through a closed breech firearm like a bolt action or single shot rifle. There is no noise from the action or any created via the ejection process as noticed in a semi automatic firearm.

Additionally, we find 300 Blackout in supersonic form to have a very mild and pleasant tone when fired through most suppressors rated for 308 Winchester. It may not be as quiet as a 300 BLK subsonic, but sometimes absolute silence is not the goal.

Is 300 BLK good for Hunting?

The 300 BLK round is an excellent cartridge for hunting. Ballistically it performs similar to 7.62 x 39 or maybe the great American hunting round known as 30-30 Winchester or 30 WCF (Winchester Centerfire).

300 BLK has one distinct advantage over 30-30 Winchester in that 300 Blackout can use more effective Spitzer type bullets, where this is a rarity in most rifles chambered in 30-30 Winchester due to the use of a tubular magazine found on most lever action rifles chambered in 30-30 Winchester..

Likewise, 300 Blackout is a superior hunting round to 7.62 X39 because most 7.62 X 39mm ammunition is Berdan primed and steel cased and therefore non reloadable. Plus, 300 BLK has many more options with regard to bullet choices more suitable for hunting.

300 Blackout for Deer Hunting

Although it may not look like it at first glance, 300 BLK makes an excellent choice in a cartridge for deer hunting. There is a wide variety of factory ammunition and reloading components to make this an excellent short range deer slayer.

They key is to run the 300 BLK with supersonic loads and an appropriate projectile. This will allow for proper penetration and expansion and a marked level of improved performance when it comes to terminal ballistics. Simply put, the 220-grain subsonic loads will not give you that performance on a deer.

Another consideration is range – we find the 300 Blackout perfectly acceptable for taking deer within 150 yards. Performance is quite similar to the 30-30 Winchester, only we feel it is a more accurate round with much better projectile options for terminal ballistics on big game.

Closing Thoughts

300 Blackout is at the very least a very interesting and diverse cartridge for the shooter, hunter and especially a home reloader. Its dual purpose gives it a very distinct role in both personal defense and shooting sports. 300 Blackout seems to have become a mainstream round in the past decade alone, despite its origins in the 1990s in the form of the 300 Whisper wildcat type of round. As a subsonic suppressor host or as an intermediate hunting caliber, we expect to see 300 Blackout stay around for at least another half a century.

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