Ammo that's safe in M1873 45-70 Trapdoor

[Sportsdad60]

Also, if buying ammo make sure the box does not say "for modern firearms only". I reload all my 45-70 ammo using Goex BP. SOFT lead bullets of 405gr. and 500gr. The 500gr. bullet over 70gr. BP will knock your shoulder outa whack in a short time. 8-)

I can shoot 100 BP rds with 500 gr bullets with no shoulder issues. I put a customized butt cover over it with a cut-down recoil pad. Works great!
You can barely see the recoil pad in this picture.