Been looking at some 45 long colt ammo. long story short i found a brand new ruger blackhawk with a 5.5" barrel for $490 and it's in 45 lc. Factory ammo seems pretty weak (understand because of old guns) and was wondering how it would work on deer? I looked at buffalo bore "deer grenades" and oh my garsh, over 1,200 ft lbs of energy in the 45lc. thoughts??