I have a 7-300WM being built.
Internet search and google-fu shows H1000 and Retumbo as the powders of choice and all the load development and load data shows these two powders. We all know H1000 and Retumbo have taken on magical unicorn / unobtanium status.
IMR 7828ssc has a burn rate near H1000, each burn chart I see has it north or south of H1000. I just bought 16lbs of it.
since the 7-300WM is just a necked down 300WM, can I use the load data in the Berger manual for a 300WM shooting a 185gr VLD with IMR 7828ssc as a starting point for the 7-300WM shooting a 180gr VLD with IMR 7828ssc?
Internet search and google-fu shows H1000 and Retumbo as the powders of choice and all the load development and load data shows these two powders. We all know H1000 and Retumbo have taken on magical unicorn / unobtanium status.
IMR 7828ssc has a burn rate near H1000, each burn chart I see has it north or south of H1000. I just bought 16lbs of it.
since the 7-300WM is just a necked down 300WM, can I use the load data in the Berger manual for a 300WM shooting a 185gr VLD with IMR 7828ssc as a starting point for the 7-300WM shooting a 180gr VLD with IMR 7828ssc?