I bought some 360 grain Minie conicals off ebay a few days ago and im going to try them out in the winchester x-150 in a few minutes and see how they shoot. They are a SOB to load but that may be a good thing. Im going to use 80 grains pyrodex RS and set up a 50 yard target. Hope these shoot good! I bought 50 of them for $15 shipped.