338BR/Whisper

[fireball168]

D-Tech has posted some pictures of a standard .473 bolt set up to run in the WSSM uppers that he sells. He's supposedly got some 6BR's sold and running.

That's the only way I see that you're going to get decent performance out of this cartridge in an AR platform.

With the pressure you're (eventually at least) going to be operating at on that SOCOM bolt, it isn't going to last long, or you'll be severely disappointed in the performance of the cartridge if you hold the pressure down to 35k.