Hey, folks! My son wants to revive my old No. 4 Mk I this deer season. We're out of ammo, and I haven't loaded for it in years. I'd be interested in what everybody is loading for these, with a 150 grain Hornady. My old load was with H4831, and I don't even find H4831 in any of my current manuals! Back when I was loading for it, I tried several IMR powders with mediocre results. I didn't try to load it really hot, but some were extremely hard on brass. I totally scratched 3031, 4320 and 4350 from my efforts. I find data nowadays for Varget and 748, neither of which I have tried. I'd like to find something accurate, that is easy on brass. Any help is appreciated. Feel free to PM me if you don't want to share here.
TIA!!!
Don
TIA!!!
Don