Playing with H1000 in my 6slr. Using hornady brass once fired, 210M primers. I did a charge work up in .2gr and 46.4 has been very good. The last round of testing 1/3 of the primers where flatten some. My ES is running high so I am weight sorting to .5gr on my brass. Since this load is on the warm side would changing to BR4 primers help? I believe they have a thicker harder cup. Also might help my ES. Any thoughts?
Scott
Scott
