Originally Posted by GSoD
KQguy - I did do the .3 increment workup initially to get into this ballpark as I got the best hits at 44.4 and 44.7.
Forester - The brass is once fired federal that was factory loaded. I tumble cleaned, cleaned primer pocket, uniformed and deburred flashhole, trimmed to manual suggestion, deburred in and out, full length resize, measure neck run out and case neck thickness.
I'm wondering if sorting by volume would help prevent such variation?
Sounds good on the brass prep...did you sort by runout or neck thickness or just check that it is not excessive? You said cleaned primer pockets...did you uniform them as well as the flash hole?
I know some like to FL size every time, but I have better luck neck sizing with a Lee Collet die. My brass does not get tight to chamber until about 4 or 5 firings...then I bump the shoulder and start again.
How was your runout after seating the bullets?
Edited to add: I have had good results from .308 Federal brass, but it seems soft and does not last as long. Lapua is way more consistent...and expensive. RE-15 is a slower powder, and gives me very good results.