I have had the same gun now for 4 years with the Nikon Slug Hunter Scope, I have tried just about every slug on the market I have the best groups with Winchester Supreme Elite
Dual Bond 2 3/4 have killed deer at 175- 200 yds. I can't get the same groups with the 3 inch for some reason the 2 3/4 shoots better. I used to lose deer with the lightfields, and remingtons, but have not lost one yet with the dual bonds.