Re: 6mm BR
Shooter65 shoots a 6mmBR with a 8-twist, no turn chamber. That cartridge performs out of proportion to the amount of powder it burns. Watching him shoot his, I am VERY tempted to go that route. He's won 1000yd matches with his and did very well in a 600yd F-Class match (200-12X, 195-?, 186-?) with some pretty high winds in the 2nd/3rd relays. I think he was shooting Berger 105/108's @ ~2900fps.