In early 1980's, I worked and hunted with a guy who had a "custom" made Mauser 98 in 264 Win Mag. Killed a lot of stuff with it - deers, black bears, elk and moose. There was no way to convince him that the thing was less than God's gift to hunters. 120 grain bullets for deer; 140 grain for everything bigger. He was a very excellent rifle shot - came to my home range to try out one of my rifles - with my hand loads - a Savage 112V in 22-250. It had a 10 power Lyman scope on it - I had nothing else with that magnification - after three shots, he said he thinks some of the bullets were missing the paper - I asked him to continue to 5 shots - ended up was a single hole with 5 "lumps" - completely cover the "hole" with case head of a 22-250 brass. I mailed him that target about 25 years later - had kept it because it was "special" to me to have seen that done. I was never able to duplicate that group, but I watched him shoot it. And then, mysteriously, we both got a few years older. Last I heard he still had his 264 Mauser, but was doing his deer and bear hunting with a 30-06...