Mixed results on my first outing.
Casting the Lyman 446110, and they drop right at .446. My bore measures at .446 as well, so wish I could get another thou or so. Beagling?
Anyway, loaded 16, 17, and 18 grains of Trail Boss. Nearly powder puff recoil, lousy accuracy until the 18 grains then not bad. I know folks are going to 20 grains, and I may work my way up there unless I find a sweet spot lower.
All my fired brass will rechamber easily, so I will probably just run them through the M die and then seat and crimp. Problem is my Lyman dies clearly oversize (size the brass too small). So if and when I find the best load is a bit higher pressure and I need to resize, is there a .43 Mauser die set that is a bit less aggressive than the Lymans, or is there a reasonable way to open up the Lyman? I am also concerned about the shoulder shape and location. At $3+ a pop, I need this brass to last.
Thanks,
Jeff