I plan on going with Remington Core-Lokt Ultra's myself. My brother has the same gun as I do, Remington Express Mag. Synthetic w/monte carlo and 23" Super Slug barrel andthe sameSimmons 1.5-5X variable scope, and his shoots the Copper Solids better. Goes to show you no two guns are exactly alike no matter how similar they are.

I want to try those new Hornady sabots they came out with. I think those would be pretty good. Haven't researched them to see exactly how good.