6 Remington Ackley Improved, Benchmark 1:7.5 twist carbon fiber wrapped barrel, Lapua brass made from 8x57 Mauser brass, 90gr HHT, COAL 2.995", 50.0gr N160, BR2 primer, 3540fps average on 8 shots, es 18fps. 100yds .3 MOA. Started showing .0003 case head expansion at 51.0gr and pitted primer at...