I use an old H&R (30's) single shot with a cheap rifle scope on it. I never sighted it in past 50 yards, but at 50 I get one ragged hole with 3-5 shots, and I have dropped deer out to 75- 80 yards and it hit where I aimed. I tried various brands and Federal 2 3/4 lead slugs work best for me. Whatever you buy, put sights or a scope on it. Using the bead sight on the front is a crapshoot. This set up is great for where I go because you rarely see a deer past 30 yards in the thick stuff anyway.