I worked up a load for my Browning X-Bolt in 300 prc. I started at 75.0 grs of H1000 - lapua brass- fed gm215m primers- Berger 215gr hybrids. I ran it up to 79 grs increasing .5 gr increments. Took it out this morning to see what load performed the best. I did not get a muzzle velocity. Here are the targets. The first good one was 77.0grs. The next was 78.5grs. either one may be very effective. I will pick one or both and shoot out to 500 yds and see which performs best. These are all 3 shot groups.