Just got through doing load development on my buddies 6br improved and got some pretty amazing results. The gun is a Bat action, Jewell 5 oz trigger, 28" Krieger 1-8" twist, and an Edge HBR stock.
Using 34.0 grains of RL15, I got an average velo of 3210 and an sd of 7 with a group of .094" at 100 yards! That is pretty darn good I think. Now to go test this load against some others at 1k and then 1500 yards. Should be very entertaining.
BTW, out of 19 different loads, the largest sd I got was 15 and the lowest was 1. The largest 100 yard group was .710" and the smallest was .094" and the average was around .200"! /ubbthreads/images/graemlins/grin.gif