Does anyone here have any experience with the 6mmBR? How about this cartridge in an AR? I have been reading a little about it on 68forums. Check out the vendor area for ARperformance.
http://68forums.com/forums/forumdisplay.php?25-AR15-Performance
It sounds like about the closest thing to a 243 you can get in a small frame AR. Sounds like 3500FPS with a 55gr bullet is a reasonable expectation.
I had a DPMS LR243 and loved everything about it except it was a tank. You can only lighten those things so much. This sounds like a great option and I think I might take the plunge. Just wondering if anyone has any experience with it. Thanks. He also has a new 270ar he is developing that sounds like it would be a hot setup too.
