Welcome to the club. What caliber?
Good choice. Assuming that you're not addicted to black powder, it will do anything a 45-75 can, and cheaper, too.
Great experience! I only had time to shoot 15 rounds. I shot 5 each of 777, Pyrodex and 2ff elephant. They all worked well and very little felt recoil with a full case and 300gr bullets. I was shooting off hand at 50 yards and the elephant BP shot the best, all five shots in a fist sized group. Very pleased with the big boomer to say the least!
how big was my group?? ah, forgot, my group don't count does it?
With your eye sight and advanced age we would call your shots a "pattern" instead of a group......
Geewhizz! Another "ONCE" upon a time story!