300 AAC Blackout Ammo

300 AAC Blackout Ammo

“What kind of 300 AAC Blackout ammo is there?  Is this just a flash in the pan, or are there serious loads out there for this cartridge?”

I get a lot of questions from people – in the “real” world and via the internet.  I figured I would start answering some of those questions as posts so as to help others with similar questions.  Yesterday, I discussed holsters for the Ruger SR9c, and today I am looking at the 300 Blackout and what kinds of loads are currently being made for it.

Introducing a new caliber to the firearms community takes guts.  After all, what can’t be done with what is already on the market.  I believe the 300 AAC Blackout is a cartridge that fills a unique position, and not just survive the early adoption period, but become a thriving cartridge outside of a narrow niche.

Earlier this year at the 2012 SHOT Show, we saw a lot of new rifles and uppers being made for the 300 Blackout. It seemed like every AR manufacturer introduced at least one new 300 BLK gun.  I took this as a very good sign for the health of the caliber.

Spending a little time researching the ammo selection showed me that there really are a lot of load options available to shooters.   Here are the loads I found (so far):

Barnes Bullets –  More known for bullet manufacturing than for ammunition loading, Barnes is making a 300 AAC Blackout round.  The cartridge uses the company’s 110 grain TAC-TX bullet that is rated at 2350 fps at the muzzle.  That works out to about 1349 ft/lbs of energy.  Currently, Barnes does not make a subsonic load for the Blackout.

CorBon/Dakota Ammo – CorBon currently offers four different 300 BLK loads.  Two are supersonic and one is subsonic.  They are:

CorBon 300 AAC Blackout Ammo Table

DoubleTap Ammunition – Hitting the two extremes with this cartridge, DoubleTap is making a lightweight, fast moving load and a heavy, subsonic load for this caliber.  The lightweight load uses a 110 grain Barnes TTSX bullet that makes for 2400 fps out of a 20″ barrel and 2250 fps from a 16″ barrel.  That works out to 1407 ft/lbs and 1237 ft/lbs respectively.

On the other end of the scale, the subsonic round uses a 240 grain Sierra MatchKing bullet.  This round, designed for suppressor use, leaves a 20″ barrel at 1025 fps and a 16″ barrel at 950 fps.  Energy is about 561 ft/lbs and 481 ft/lbs.

Hunting Shack Munitions (HSM)HSM makes four different loads for the 300 AAC Blackout.  Two loads are supersonic and two are subsonic.  The loads are:

HSM 300 AAC Blackout Ammo Table

Gunn Ammo – Gunn Ammo offers three different Blackout loads, but does not publish any ballistics information for them.  The three loads are a 130 grain SOST load, a 147 grain FMJ load and a 220 grain subsonic load.  SOST, if you are not already familiar, is an open tip bullet design that was adopted for combat use by the US Marine Corps.  It is not a hollowpoint design, rather it is more like an open-tip match (OTM) bullet.  Do not expect expansion from this bullet.


PNW Arms – PNW is making four 300 AAC Blackout ammo loads.  Here is the breakdown of their products:

PNW Arms 300 AAC Blackout Ammo Table

RemingtonRemington is the only “big dog” that has committed to the 300 Blackout.  Thus far, Winchester and ATK (Federal, Speer) have taken a wait and see approach.  Remington is currently loading four rounds for this caliber:

 Remington Ammo 300 AAC Blackout Table

Right 2 Bear Ammo – Right 2 Bear Ammo (RTBA Ltd) is a new-to-me company, but they currently offer six different loads for the 300 Blackout, including two subsonic loads.  They are:

Right 2 Bear Ammo 300 AAC Blackout Table

I know that the 300 Whisper ammunition is supposed to function flawlessly in 300 Blackout rifles, but I intentionally did not list 300 Whisper loads in this list.  Hornady, Black Hills and others make Whisper loads.  However, it looks like the Whisper is dying off, and it is merely a matter of time before these companies shift their focus to the Blackout.

I hope this list proves useful to anyone looking for 300 AAC Blackout ammo.  If I have missed any ammunition loads, please set me straight in the comments section.  I want to make sure everything is listed.

By Richard Johnson

Richard Johnson is a gun writer, amateur historian and - most importantly - a dad. He's done a lot of silly things in his life, but quitting police work to follow his passion of writing about guns was one of the smartest things he ever did. He founded this site and continues to manage its operation.

4 replies on “300 AAC Blackout Ammo”

Bought one today. CMMG gas impingement, flat top. I have seen a few others with piston systems but they were more than I could spend.

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