nilsen... what do you mean? largest caliber, most powerful energy wise, fastest, or most recoil?
in that order... Probly a 70 something caliber flintlock somebody had me try once... then, a 458 win mag. then a hot loaded 22-250 and then it would be a tie with the 458 and that stupid little j frame 340 pd for recoil.
I would shoot anything I had or anything anyone would let me shoot.
oh and furball.... It looks like a go to take my drivers test sometime real soon.
lazs