AR-30A1 in 338LM 26 inch barrel, 1:10 twist Bullet: 225 Grain Hornady SST Brass: Lapua (once fired, FL size) Powder: 91.0 Grains RL-19 Primer: Federal 215 Muzzle velocity: Averaged 3093fps. Accuracy (5 shot groups, 100 yards, CTC): Averaged just over 1 inch at 100 yards. Best .910 inches...