IMR-4831 fooled me, everyone i talked to said it is comparable to 4350, not in this case, but i should have known the info was wrong, if i compared it to a IMR 4350 load using the same brass and primer and bullet, max load was 42 gr. book max on 4831 said 45 gr. book max was very wrong as has been pointed out, lessons learned--- check double check triple check before going forward with a new load. Rio7
