Re: 260 Rem Neck Tension
If your seater generates shaving from the bullet, one of two things is happening. Either the neck diameter is too tight (or chamfering is needed), or the necks have hardened to where the neck sizing process is being compromised.
The problem is springback and it works in opposite ways with bushings and sizer balls. If there's a bushing involved, the neck tension becomes reduced, and if there's a sizer ball, it becomes increased.
My .260 rounds are handfed singly, and need no accomodation for feeding in the neck tension determination. My expereince is that the best neck tension is minimal neck tension.
If I can move the bullet in the neck with a reasonable two-finger grip, I need to increase neck tension until I can't.
It's purely a practical issue, and if I could feel comfortable with less tension, that's what I'd use; but I don't like the idea of seating depths changing on their own while I'm manipulating ammo at a match.
It's not good for accuracy, and I suspect there's a safety issue involved as well.
Greg
