This is deep science here fellows, so try to stay with me. When I am in brown bear country, the .44 mag on my hip gives me more comfort than the .357, the .45 comforts me more than the .44, and with the .454 cylinder slid in the FA , I feel even better yet. But, with a Marlin .45-70 also on hand slid down in my saddle boot I can positivly whistle as I go. I don't understand all of the math, but the bigger the brute the bigger the bullit seems like pretty simple, common sence to me.