I really don’t know. I just know that I’ve shot groups on paper and to distance and have been great with a lot number somebody else said was no good. I did no development. Just same powder and depth I was running Dtacs at. I’ve been running them right at 2900 from a 7-1/2 twist proof barrel. I just put on a new barrel and will be starting a new lot of bullets so I hope everything keeps working for me@Kentucreed6
Curious what your thoughts are to the issue?
I have tried seating depth variation, different powders, different charge weights, different brass, different sizing die, mandrel die... every single one has the same result. Flyers keyhole impacts, blown primers...
Switch to a different bullet and in 20 seconds I have a 1/4-1/2 moa group...
something is going on with the bullet