I finally got to finish my test. IMR 7828 was my last powder. 60.5gr 2992fps, no pressure. 61.0gr 3037fps, no pressure. 61.5gr 3063fps, primer started to flatten. 62.0gr 3077fps, primer flattened and had slight cratering. I think that I will start my load development with IMR7828 and use 61.0gr as my max charge. I will start a new thread when I start my load development.


JTD