I am increasing neck run-out mostly from bullet seating. Run-out is consistently around .002" from sizing and then jumps up another .003-4" from seating Barnes tsx using RCBS dies. In your experience, what is the most likely cause? I have always had more run-out created in the sizing process but not in this case. Thank you.
Do you have any compelling evidence at all that such a meticulous non-issue makes any difference at all in translating into accuracy "?
I use my run out gauges and re-adjust the bullets all to center zero deviation. I haven't seen any discernible difference at all in group sizes.
If we are talking about hunting loads it's totally immaterial. If it's championship, competition bench rest shooting - show me any importance at all.!
