Just do 3 shot groups. If you need 5 shots to take down a deer, You may be better off using a spear. But it was nice to finally figure out those 350's. Im down to 3 bullets and those are the 385s but im saving those for the 100 yard target. Do you have the tools to measure the land/groved? I pushed a great plains bullet down the barrel, then pushed it back up and measured off that to get the diameter and then ordered .500" bullets from BS.