"Houston, we have a problem"

[Hoot]

I had this problem with a 25 Gibbs once. It sounds unrelated to my problem but maybe it will stir ideas.

My problem was that I had the seating die body too low (being a wildcat i guess you can do that) and the case neck would get pinched between the bullet and the die body during seating and dig into the side of the bullet. Being that the case was already thin at the neck from fireforming, i would just invert itself.

But like i said, Probably not the problem but maybe it will give you some ideas.

That is a valid concern. I had set up my seating die by screwing it in with a case in the holder and the ram engaged, until I felt the crimping cone touch the case. I then unscrewed it one turn and locked the ring to guarantee there would be no crimp imparted. That's what Hornady's instructions said to do for a no-crimp seat.

Still would like to hear what other folks measure for their decapping ball diameter. I did a sanity check on my .260 Remington die set decapping ball and it was .262 also.

Thanks,

Hoot