30 year old Lyman .54 Deerstalker shooting T/C 450 gr Maxi balls over 90gr. Pyrodex RS with front groove filled with Bore Butter. Off my elbows on a solid bench at 50 yds. I pulled the 3rd shot with a slow cap, the rest fired normally. I have the Lyman tang peep and a target globe front. Dont let my elk friends see this!