Introducing the Advanced Armament Corp. 300 AAC BLACKOUT (300BLK). This system was developed to launch 30 caliber projectiles from the AR platform without a reduction in magazine capacity and compatible with the standard bolt.
Full power 123 grain ammunition matches the ballistics of the 7.62x39mm AK, has 37% more energy than 5.56mm M855, and 9% more than 6.8 SPC TAP 110. In fact, from a 9 inch barrel, the 300BLK has more muzzle energy than 5.56mm M855 from a 16 inch barrel. When 300 BLK is used in a 16 inch barrel, it has 23% more energy than 5.56mm M855 from a 16 inch barrel - with much higher-mass projectiles for a more dramatic effect on the target. Or choose subsonic cartridges for optimal use with a sound suppressor - 220 grain Sierra OTM (open-tip match) bullets vastly outperforms a 9mm MP5-SD in penetration and long range accuracy.
Due to the high efficiency of the cartridge, less powder is used than 5.56mm, which results in a rifle that is a comfortable to shoot - even with a short barrel.
Reloading dies available from Forster products, Reamers and headspace guages available from Pacific Tool and Gauge.
DESIGN OBJECTIVES
• Create a reliable compact 30-cal solution for the AR platform
• Utilize existing inventory magazines while retaining their full capacity
• Create the optimal platform for sound and flash suppressed fire
• Create compatible supersonic ammo that matches 7.62x39 ballistics
• Provide the ability to penetrate barriers with high-mass projectiles
• Provide all capabilities in a lightweight, durable, low recoiling package
REASONS 7.62x39 WAS NOT CONSIDERED
Extreme cartridge taper
• Reduces reliability of feeding in AR Magazines
• Reduces Magazine capacity
• Cartridge taper induces considerably higher bolt thrust-
exacerbating the AR Bolt's weaknesses
• Requires a larger Bolt Face which reduces Bolt Locking Lug strength-
exacerbating the AR Bolt's weaknesses
Limited projectile selection
• 0.311" diameter not a common option in most modern bullets
*NRA Endowment Member* | Veteran Vote Adam Kraut for the NRA Board of Directors - http://www.adamkraut.com/
Full power 123 grain ammunition matches the ballistics of the 7.62x39mm AK, has 37% more energy than 5.56mm M855, and 9% more than 6.8 SPC TAP 110.
In fact, from a 9 inch barrel, the 300BLK has more muzzle energy than 5.56mm M855 from a 16 inch barrel. When 300 BLK is used in a 16 inch barrel, it has 23% more energy than 5.56mm M855 from a 16 inch barrel
LOLWUT wrote:Looks like a glorified 7.62x39...... I don't see this ever becoming anything more than a wildcat cartridge. Only time will tell though.
Here is a quote from the guy who is the project lead on the 300 BLK cartridge development: The High Road
Compared to 300 Whisper(R), 300 AAC BLACKOUT has more throat. So, just like 6.8 SPC-II compared to 6.8 SAAMI, or like 5.56mm compared to 223, you can generally load it to a higher velocity for any given pressure. For this reason, you should not shoot full power 300 AAC BLACKOUT ammo in a 300 Whisper(R) chamber. However, you can buy a reamer from PTG and update your previous chamber.
300 AAC BLACKOUT should get about 16 inch 300 Whisper(R) ballistics from a 12.5 inch barrel.
It was submitted to SAAMI so it is an open standard for which any company can make guns or ammo. Remington is making millions of rounds of ammo, and it is just $12.99 a box MSRP - about $5 cheaper than any 6.8 ammo - and it holds 30 rounds in a normal magazine and uses a normal bolt.
Oh, and it makes Major Power factor and is legal for Heavy Metal 3-gun competition for which people previously needed to use 308. Now they can use a lighter AR15 platform.
“Hard times create strong men. Strong men create good times. Good times create weak men. And, weak men create hard times.”
