If you want the gun to last the best way is to run a good comp. The KKM G21H1C barrel and comp set with a 22lbs spring works perfectly. The comp keeps it locked for a few miliseconds longer slowing down the slide. Stops the increased slide speed from battering the frame. Buffalo Bores 255 grain Super load is the best I found for that type job. Very accurate as well. In my scoped super it shot 2.5" groups at 100 yards. If you hand load it the cast bullets in the 240-255 range will get you plenty of penetration. The Lehigh solid copper 190 wil also doa great job on bear skulls. Nice bear by the way. I see there is a Glock on it. Would like to hear the story on that bear.