Hmmm. 50 rounds. That's 2.5 days at the range with my Chunk Gun. (58" long, 50.5 caliber, black powder, shoots supported prone). Sometimes if I get off my 20 rounds practice in less than the usual 4 hours, the range officer accuses me of rapid fire!
I am really in fear of the time I'm coming back from a shoot and a naive LEO stops me to tell me about a broken tail light lens or something, and asks, "You don't have any guns or explosives in the car do you?"
"Um, just go ahead and call SWAT..."
S&F