Mine's a late 70's or early 80's CVA Mountain Rifle .50 cal. with German silver furniture. It seems to love the Hornady PA Conical over 80 grains of FFg. The lock is really partial to the T/C cut agate flints. For a factory gun, this is the most finely balanced gun I own of ANY variety.
50cal TC Hawken...refinished the stock a few times...antiqued the brass last winter...everything turned out awesome except the trigger guard..it wouldn't take at all...inletted the stock so the lock sits flush...sent the lock to TC to have it updated to the new style..ground the pan so the frizzen sits flush...polished the pan..upgraded the touchhole liner..put on fiber optic sights...composite ramrod..after I had the lock updated it sparks best with white German Agate flints..
Shooting 245gr Buffalo Ball-ets over 70gr of 3fg..also shoots patched round balls over 90gr of 3fg without touching the sights..
One of these days I'm gunna get a new flintlock...but we're a deadly combo...I still don't like the lock..