Ive personally taken at least 25 moose over the years and probably more. Guided hunters to many more than that. Bottom line is moose are not hard to kill. Ive seen a bunch killed with the 30/30 and I would bet more have fallen to the 303 British than any other caliber. The reason for that is the Enfield is a popular gun among the First Nation ppl. My current favourite caliber is the 338 Federal. Ive taken a few moose with it now and it just flat works.