Thank you for your reply. I am new at reenacting and depend a lot on the more experienced.

To answer your first question, I should be so lucky as to own an original. I should have stated it was a repro. Sorry about that.

I am only firing black powder; ffg-brands Goex and Kik.
Caps: Dynamit Nobel No. 1081.
The bore is cleaned with hot water and dry patches.

Do you think it is a good idea to drill the nipple to a larger size? Same question with the cross-hole?