I have been having a problem with erratic performance out of this powder since I began using it. I get several different levels of felt recoil out of the same batch and I often notice unburned kernels of powder in my barrel and on my hands. I am using CCI magnum small pistol primers, 15 grains of IMR 4227, and 125 grain flat nose bullets. I trimmed all my cases to 1.280. I was using Titegroup at 7 grains for a moderate load and felt pretty good about that. This really only seems to be an issue with my revolver and not my lever gun. I'm about to ditch this powder but I am concerned that I may have this problem with a new powder. Any help would be appreciated.