I got 20 .300 wm reloads in a trade. This guy reloaded these rounds real light. I was planning on using these to break in the barrel. Not sure how necessary that is, but that is another thread. The load is as follows: PMC brass, Federal 215 mag. primers, 180gr. Sierra round nose bullets, and only 55 grains of IMR 4320 powder. Is it safe to shoot these? I'm sorry if I sound stupid, but I don't want a bullit stuck in my barrel. The guy seemed all proud of the load. He talked about too much pressure and kick. He even wrote the recipe down so i could duplicate it. What should I do with these?