Has anyone used X-treme bullets for reloading? I, was given a box 9mm 115gr rn. I, loaded up some using power pistol powder 5.6gr, aol at 1.144 and mixed brass and vel is 1100-1200 fps. The group is about 4-5 inches. Called x-treme they said if you stay under 1300fps should be no problems. Question is, should I order somemore or go with another brand? If I go with another brand will it change my formula alot. Using these for just target pratice.