The 25acp brass doesn't expand to the dia. of the breach plug when fired to seal it. So Iam going to look for a way to enlarge the mouth of the 25acp brass to seal better and maybe I might get better results with small rifle primers and BH209, maybe no hang fires. Jenks
Jenks, without me having any first hand experience with the 25acp primer
plug, It seems to me that if we have headspaced the whole setup just
right that when we close the receiver and it locks up we could be
putting the 25acp case under a tight compression that would be sealing
the bottom edge of the case with the breech plug. Do you have a feeler
guage or some way of determining whether your 25acp case is being
compressed into the breechplug when you lock your receiver up ?