Originally Posted by supercrossbmx69
Lefty7mmstw, I was lucky enough to find some 180gr Bergers so where should I start to work up my loads with Rl50 and rl33? I've already Burnt through all my h1000 and retumbo trying to figure out my chrony problem (returned that pos)
With the 171 barnes match last year I was at 86 grains rl50 at 3100 fps in a 24" bbl. with normal pressure. I worked up a load with rl33 and the 171 but rl33 was rather stiff by 84 grains. I've actually gone to either the 140 accubond with 82.0 rl25 under it or the 150 ablr with 80.0 rl25 under it at present. My rifle has a 10" twist and is flaky with accuracy at that bullet weight; one day it's 1/4 moa, the next it's 2 moa. Here's alliant's poop sheet for rl33 from last year.