Im with Catfish on this one. I have had accuracy change drastically more than once by changing primers. Good example a few weeks back: 35 Remington, 180 Gr. Speer Flat Point, 43 Gr. of RL-12. 2 to 2.5 inches was the best she would do. I loaded CCI 200's, Rem 9 1/2's, WLR's all with about the same result. Loaded 5 more with Fed 210's and shrunk it down to just over an inch. Loaded 20 more with 210's and all shot great.Got me a new Deer load
