I’m trying to work up a load for a Mossberg MVP 308 with 1 in 10 twists. I’m using 42g of varget/168g Sierra MK. Groups at 100m are crap 1.5” to 2.00” and inconstant. I’ve went to a heavier 178 ELD match with the same result. I’m ready melt this rifle down, can anyone give me some advice on this rifle/load?


















































