Mike, yes on the double rifle and getting great groups, "minute of heart/lung" at 60+ yards. I took your advice on targets side by side, right barrel on the right target, immediate left barrel on the left target, then superimposing for the composite group. Very pleased with where this is with 31.5 grains of IMR 4895, 7 grains dacron, cci large rifle primer and 345 grain buffalo arms .446 bullets.
got a universal decapper, universal bell-mouth-thing, took out the expander ball from the full-length die and just resize the neck/bell it out barely.
Just received some Hawk 350 grain .446 bullets that are next up for coming up with a formula. Plus a few more boxes of buffalo arms 345 grain to keep the love alive.
Wish Bertram would import some more 43 Mauser brass, but other vendors pop up now and again, plus I have 60 pieces of brass for now.
Will post pictures on that thread soon. Can't wait to take it to the field to fulfill its indented purpose!
Thank you for the advice on the double rifle as well. Getting there....