Posted a while back about subsonice loads in 45-70 rifle with 45 ACP suppressor.
Found an Encore barrel, it's on the way. Once here, it will go off to GunWorks Supply to get the strange threading used on 45 ACP cans, .578x28.
I'll try loads w/o the can to check velocity and once I work up a good load, I'll try the can.
Open issue is small charge in big case. Normally in 45-70 reduced loads, I use an over powder wad and coarse cuban cornmeal as a filler. That would probably gum up the can.