From my experiences of using buck shot on yotes. 00 buck actually does less damage since its pushing 9 pellets and I have never had all 9 pellets hit one, at the most I have had maybe 4 or 5 of the 9 hit. 4 buck has 27 pellets and leaves alot more holes in the hide 4 buck seems to pattern alot more evenly then 00 buck because there is more pellets I've had pelts that were basically ruined because they had over a dozen holes in them from 4 buck loads.