I am still relatively new to reloading, and I am having kittens over COL and the inaccuracy when bullet seating. If I sneak up on every one of the loads, I can get "close" to the right COL and sometimes bang on. But unless I reset every time I get a wild variance.
I have done the following:
3 presses, Lyman all american, Lyman T-Mag and a mates press, all still showing the variance ( I have also shimmed any movement out of the turret on my t-Mag and All american)
Various bullets, Sierra Matchking in 77grn 69grn, PPU 62grn (these have been weighed and grouped to, thinking it may be manufacturing tolerances)
2 types of case, Federal and Lapua match (weighed these and graded them to, in case
Trimmed all brass to length, cleaned and uniformed primer pockets etc.
Am I worrying to much or is there an answer I am missing here? IS there something else I can do in this quest for accuracy?
Thanks to anyone that takes time to read my rantings.