I'm gonna use my friends Browning .243 wssm Varmit, with the big bull barrel and tripod. Must weigh 12 to 13 lbs. He has a couple of different loads made up...he say's one load is a 54 grain that is hitting 6,000 FPS. I go out Nov with a left over Cous tag. I find it hard to believe that he is getting 6k out of the barrel with a reload...what do you all think?