I just went through this last Saturday and burned $50 in shells with my Ithaca Deerslayer II. I pretty much deduced exactly what bigcountry stated above. The 2.75" Remington copper solids shot excellent. The lightfield hybreds I shot were 1 hole at 50 yds, but dropped fast and became erratic at 100 yds. I tried the Hornady 300 gr. They shot decent and at the same height as the copper solids at 100 yds, but werepushing about 3" to the right on me. Since my brother shoots copper solids out of his 1100, I figured I was better off keeping those at the zero in case i'm in a bind and need to borrow some ammo. I have shot deer with his gun using the copper solids and performance was excellent. I'd start with a box of the copper solids and if they work call it done.

KEJ