When I have to use a slug gun, I use an Ithaca 37 smooth bore, and Federal Tru-ball loads. It's a foster type slug with an added ball in the base of the slug to help it obturate to bore diameter. I shoot 4" groups at 100 with this load, and ammo is cheap. I killed my biggest buck to date with this load, a 90 year shot that flipped him upside down and buried his tines in the ground. A 4 1/2 year old 9 pt. that dressed out at 160.
