Re: Chicken or The Egg... Again
Well, it's been my belief that seating depth is dominate given that regular powder charge changes don't affect grouping as much as seating.
So I find the seating that the bullet/barrel likes, before changing powder & primers.
Alot of people just jam bullets to begin & vary powder. THEN they tweak seating.
I see no particular reason that jammed would be predicted as best(it isn't on any of my guns).
So why would I check charges with less that optimum seating, mucking up the grouping -across the board.
I wish I understood why seating affects accuracy.
In my experience seating is the single largest factor in accuracy, because nothing else can cause a 1/4" group gun to suddenly jump to 3/4" grouping like seating. And with this, I don't think seating has anything to do with timing. Yet I'm told that there are 'seating nodes'.
OK, if timing, it's still NOT a tweak, but a prerequisite.