Thought I would let you guys know that are loading with IMR 4007 SSC. Total Recall I guess it deteriorates to quick. Thought I would give it a whirl because it feeds so well in the progressive loader. Check out IMR web site for a full replacement with any IMR powder. This sucks I have to pull a couple hundred rounds. Shoots great might just have to go blast something. What are your thoughts? Do I shoot them or not? Year and a half old. Rutnbuck