Got this from another site to prevent you from blowing your gun apart. Well I blew up my 444 today and just figured out why. In my search to get a load that worked in this microgrove, I thought I had found the rl7 powder and loaded up some loads. Turns out I used acurate#7 not reloader 7. Lucky to have all my digits. 444 is no more.... pics can be found here.