So I have tried Unique loads in every straight walled cartridge/ I have from 38 special to 45/70 and always end up with this nasty corn meal looking residue in the barrel, chambers, spent cases, etc. I seem to get it weather i use standard and magnum primers and ive tried very light crimp to heavy enough crim to start swelling the base of the case with no change to this crumy stuff. Am I doing something wrong or is this just whats to be expected with Unique?