Hi canuckistan;

Welcome to the forum.

I/m a fellow Canadian who had lived in the Montreal area from 1962 to 1975. Have been in Ontario since then. My favourite rifles have been in .45-70 and .458 Win Mag.

Thanks for sharing your loads. I've yet to use IMR3031 in a .458 but your results look promising. Like Ron, I've found H4895 to be my first or second choice for heavier bullets, and H4198 for 300s and 350s. Might give IMR 3031 a try, but first I want to find some AA2460. The powder that has worked best overall for .45-70 and .458 (as one powder for each) is H335, but AA2460 is similar, and perhaps a tad better for heavier bullets. As Ron has experienced, however, H4895 has a wider range of applications as a "one powder-do-it-all", sort of thing.

You can read my stuff on my website at:

www.bigbores.ca

Bob

Last edited by CZ550; 01/30/21.

"What shall it profit a man if he gain the whole world and lose his own soul" - Jesus