Need some advice. Reloading for 300 prc in AI AXSR.
Lapua brass.
215m primers
230 grain Atips
Retumbo.
During load development I make up 5 rounds in increments of .3 grains. Found a node at 78.3. Reload 10 more and it’s the same ES will go from 10.02 and SD of 3.73 to an ES averaging around 30 and SD to 17-22. Done this 4 times now and can’t seem to pinpoint my issue. Using a match master and double checking on an A&D scale.
Lapua brass.
215m primers
230 grain Atips
Retumbo.
During load development I make up 5 rounds in increments of .3 grains. Found a node at 78.3. Reload 10 more and it’s the same ES will go from 10.02 and SD of 3.73 to an ES averaging around 30 and SD to 17-22. Done this 4 times now and can’t seem to pinpoint my issue. Using a match master and double checking on an A&D scale.