I've been shooting short range benchrest for the last couple years and now I'm trying my hand at the long range ie.1K. Here is my seating depth issue. I sort my bullets by base to ogive in .001 groups. I seat with Wilson seating dies and I can usually seat them to within .001 to .002 of my desired depth. But more frequently then I would like I get some that are up to .004 off my desired depth.
I’ve heard that seaters don’t always use the ogive to seat. The die maker picks an arbitrary point along the curve between the ogive and the meaplate. What is throwing my seating depth off so much? Is there that much of a difference in the curve even if the base to ogive is relatively consistent?