Re: problem with lee dies
Ya, sounds like the projectile is now too small
or the brass is too weak, or both.
One check to perform, mic your 'used' projectile
against the size of a new one, then if ok, try loading
in new brass.
I would think the last of the problem is the die.
BUT [not that you did], NEVER load below or above
the data given in the manuals.
IF I load correctly [within data range] and I have a
failure in cycling on a semi-auto that I have tweaked
away from OEM.......I don't even pull them so I can
reuse them, I just shoot them in a revolver, the ones
that I can anyway.