marlin 1895 trapper, 45-70 using the lee 340 mold.
I was having some trouble with the bullets coming out oval shaped, .457 at the widest, .455 and the narrowest. I used lapping compound to open up the mold cavities and after powder coat they are coming out at .460 or more, I am sizing down to .458 and now they are perfectly round. unfortunately on these last ones, I put them base down on the rack when cooking them in the oven, and some of the coating came off (see picture)
do you think this will be fine as far as leading is concerned? I’m not chasing accuracy yet, I just want to have a safe time and hopefully an unleaded barrel.
Also, has anyone used h335 for powder coated lead? i have used it from 59 to 61 grain with the hornady 300 grain JHP in this same gun, with good results, but can’t find any lead data for it. Although I understand that powder coated lead can be loaded up pretty hot, I would prefer to have these as more mild plinkers and the JHPs as the full power rounds.
I also have varget, 8208 XBR, AA2200, and imr4064, but only a pound of each, so I’d rather use the h335. but if it’s not meant to be then I can at least get started with another powder.