"Heavy .45 Colt +P - 325 gr. L.B.T.-L.F.N.(1,325fps/M.E.1,267 ft.lbs.) - 50 Round Box. These Heavy .45 Colt +P loads are safe in all LARGE FRAME Ruger revolvers. (includes Blackhawk, Super Blackhawk, all pre-2005 Vaquero, Bisley, Redhawk)"
Exactly, BUT THIS DOES NOT INCLUDE THE NEW BLACKHAWK FLATTOP or the New Vaqueros. They're build on a medium frame, not the large frame.