I have a BFR 475 L and love it. I can't see a problem shooting 480's in it although I have not. Loading 480 level in 475 brass is easy. All bullet weights I have tried [325 jacketed, 355 WFNGC, 400 WFNGC, 410 WFNGC, and 425 WFNGC] have performed extremely well at medium to heavy loading. In the medium category 14-15 gr HS-6 have shoot very well and recoil is very tolerable with the BFR.