RE: What have you done foolish?
Well I have one worth noting. When I was new to muzzle loading (earlier this year, but who's counting) I didn't know about breech bolt grease. Long story shot, 50 shots with 150gr of 777 locked that baby up. I had to send my rifle back to knight. I also got my ramrod stuck down the barrel during this and couldn't pull the breech bold out to get the ram rod. So knight recieved my rifle with stuck breech bolt and broken ramrod that was stuck in the barrel. The fixed it and even replaced my ramrod for free.
Worse shot, doe at 70 yards broadside. Forgot to dress the barrel.
Best shot, button buck at 55-60 yards shot right through the back of the neck just below the head. Bullet exited right along the lower jaw. The deer just stood there for a second and fell over like it had been blown over by the breeze.
Tom