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Top 5 Subsonic 300 Blackout Ammo

When shooting your 300 blackout suppressed you'll likely want to use subsonic ammo to make the gun quieter. Subsonic 300 Blackout has some of the best terminal ballistics of any subsonic round. With bullet weights in the 190-220 grain range, and a muzzle velocity below 1,100 FPS, 300 Blackout is one of the best cartridges for shooting subsonic rounds. This list is our best 300 Blackout Subsonic ammo, you can check out all subsonic 300 Blackout ammo here.
1

Winchester USA Ammunition 300 AAC Blackout Subsonic 200 Grain Open Tip Range

Winchester USA ammunition was developed to provide excellent performance at an affordable price for the high volume shooter. Featuring high quality Winchester components, this ammunition delivers outstanding reliability. This ammunition is loaded with a full metal jacket bullet which is known for its positive functioning and exceptional accuracy. On impact this bullet does not expand and is ideal for target shooting. This ammunition is new production, non-corrosive, in reloadable brass cases.

What Customers Are Saying

Yed

These work great at the range in my Diamondback AR
- HS, 11/7/2022

About Winchester

A world leader in delivering innovative products, Winchester is The American Legend, a brand built on integrity, hard work, and a deep focus on its loyal customers. Considered one of the world’s leading ammunition manufacturers, Winchester has built its reputation on delivering innovative ammunition products, providing top-shelf customer service and demonstrating industry leadership. Our legacy in servicing hunters and shooters, law enforcement and U.S. warfighters runs deep, with decades of support at the highest levels including delivering technologically advanced products. From our research and development efforts to our manufacturing processes, we understand the value of product quality and performance. With a reputation steeped in tradition, we have earned the moniker, ‘The American Legend’ by delivering on our commitment to excellence in everything we do.

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2

Barnes Precision Match Ammunition 300 AAC Blackout Subsonic 220 Grain Sierra MatchKing Hollow Point Box of 20

Barnes Precision Match ammunition, engineered for precision at extreme distances, features exceptionally low standard deviations and extreme variations due to Barnes’ exacting manufacturing and quality standards. Precision Match rounds are loaded with a Sierra Matchking projectile featuring a long boat tail and high B.C. As an additional bonus, scan the QR code located on the back of each box to view Doppler radar generated drop tables specific to each load.

 

Sierra MatchKing bullets have very thin jackets and are held to exacting tolerances in diameter and weight. These Hollow Point Boat Tail bullets have a small meplat to produce a higher ballistic coefficient. Their accuracy has been acclaimed worldwide and they have been used to win more target competitions than all target bullets from other manufacturers combined. The 30 caliber MatchKing is widely respected as one of the most accurate bullets available. It has been used to win countless championships and set numerous world records in various long range shooting competitions.

 

As a proud supplier of precision ammunition to America’s Military Elite, Barnes makes top tier ammunition commercially available for the elite, technical shooter who demands uncompromising performance. Precision Match Ammunition delivers exceptionally accurate, long range allowing the shooter to send it with confidence every time. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.

What Customers Are Saying

I would not recommend

A significant amount of variation in velocity evident by some rounds short cycling the AR action and others obviously super sonic.
- Steve, 1/28/2023 Shop Now
3

Hornady BLACK Ammunition 300 AAC Blackout Subsonic 208 Grain A-MAX Box of 20

Hornady BLACK ammunition features versatile loads optimized for excellent performance from America’s favorite guns. Loaded with legendary Hornady bullets, Hornady BLACK ammunition is designed to fit, feed and function in a variety of platforms. Direct impingement, gas piston, suppressed, unsuppressed, inertia, bolt, pump, supersonic, subsonic, rifle, mid-length, carbine or pistol – Hornady BLACK ammunition delivers superior performance for a variety of applications. 

Features

  • High Quality Cases, Primers and Propellant
  • Versatile Hornady bullet options
  • Optimized performance from various platforms

What Customers Are Saying

Accurate Round

I use this mainly for target shooting and it works extremely well in my 8 inch suppressed 300blk. Its the most accurate round Ive tested and I am routinely getting 1 inch groups at 100 yards subsonic and suppressed. Im impressed.
- Alabama Matt, 1/25/2017

About Hornady

“Ten bullets through one hole” is the philosophy that brought Hornady® Manufacturing from a two-man operation in 1949, to a world-leading innovator of bullet, ammunition, reloading tool and accessory design and manufacture today. Change is their constant and daily challenge. They outperform their competitors by ensuring the products they make are the ones their customers need right now, and accurately predict what they’ll want in the future. They recognize trends, and respect when to leave well enough alone. Their workforce includes an ample number of hunters and competitive shooters, as well as veterans and former law enforcement officers. At Hornady® Manufacturing, ammunition is more than their livelihood. It’s a major part of their daily life.

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4

Stelth Ammunition 300 AAC Blackout 220 Grain Total Metal Jacket

Ammo Inc. 300 Blackout is the perfect ammo for your next trip to the range. You will not find a higher quality, better performing line of rifle ammo than the Signature Ammo, Inc. rifle line. Balancing velocity, accuracy, and recoil, the development team at Ammo, inc carefully analyzes every load to help ballisticians achieve the specific outcome of superiority. This ammunition is new production in reloadable brass cases.

 

Features

  • Flawless Cycling and Superior Shooting
  • Hyperclean Technology - Shoot more, Clean less
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5

Nosler Match Grade Ammunition 300 AAC Blackout Subsonic 220 Grain Custom Competition Hollow Point Boat Tail Box of 20

Nosler Custom Match Grade ammunition is loaded with the highest quality components to deliver accuracy that will rival or even surpass similar handloads. Each powder charge is meticulously weight-sorted to provide consistent measurements and capacities for accurate loads. Nosler Match Grade ammunition uses Nosler Custom Brass which features a Nosler head-stamp, chamfered and deburred case mouth, deburred flash hole, consistent trimmed length, and consistent neck wall thickness.

Custom Competition bullets blend match winning accuracy and consistency with maximum value for performance-minded shooters. Highly concentric jackets, ultra precise lead alloy cores and hand inspected quality offer competitive shooters more, for less. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.

What Customers Are Saying

Excellent deer hunting round.

While I was Leary about trying this round on deer. My thoughts were soon dispelled. This 220 grain mostly copper to lead was a one shot one kill round. I knew the 110 grain was great but to me the 220 grain, while being a tad slower, did an excellent job of penetration and clean kill.
- Larry J. Gauthier, 2/18/2018

About Nosler

At Nosler, excellence is not negotiable. We’ll never sacrifice quality for cost. We don’t cater to every trend & we aren’t everything to everyone. We know who we are & being true to yourself allows you to become the best at what you do. For us, that’s building the most innovative, most accurate – and most effective – bullets & ammunition in the industry. By a longshot. Nosler’s products lead the pack, because they’re built with equal parts ingenuity & integrity, passion & precision, consistency & confidence. The truth is, we owe it to you. Trophies, victories, lives – there’s too much at stake for second thoughts or second changes. You won’t settle, & neither will we.

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