RE: Ft. Campbell and what slugs?
You need to shoot groups with at least 3 Brands of Sabots to see which one will do better in your barrel......
I shoot HornadyXTP 260gr and 90 grains of Geox 2f effectively at 150 yards with a Knight "Wolverine"......
I shoot Winchester "BRI" in a FN BRN A-5 & Hastings Barrel........