Here is a quote from the guy who is the project lead on the 300 BLK cartridge development: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.
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.