458WM specs allow a very generous throat, which may cause accuracy problems with lighter (shorter) bullets. Just FYI.
Perhaps in theory.
Have a 458WM CZ that is pretty heavy on theory then. If you look at a SAAMI chamber spec the leade is funnel shaped and starts about 10 thou larger than bullet diameter... This one will get most all cast bullets or jacketed bullets lighter than 450 gns well clear of the case mouth before they begin to engrave the rifling. It will shoot an inch at 100yds with 450 TSX or 500 gn jacketed or you will be lucky to hit a pie plate at 100yds with lighter or most cast. Guess you have different chamber specs on that side of the equater.....
