Congradulations on a nice elk, job well done.
That's hunting at it's best.
I don't know anything about flintlocks, however I do know a beautiful rifle when I see one, that one fits the bill.
That's what muzzle loader hunting is all about and in my opinion in-line muzzle loaders should have to be used in regular rifle season only.
Best Regards
Bob Hunter
www.huntercustoms.com