The .357sig is steel plate friendly. Where I shoot the plates get hammered with anything from .22s to .44mags and larger. I hammer them with plenty of .357sig. I assure you a .44mag is harder on the steel than the .357sig.
I think his range is probably more concerned with bottle neck rifle cartridges than any pistol cartridges.
Last edited by dkf; 01-23-2013 at 11:16..