So I was viewing the 7.62x39 Primer Blowout thread and it got me thinking, my No4 Rifle did the samething to a few casings, didn't blow the primer out but it looks as if a few are punctured, now I'm 19, I have no clue what a punctured primer looks like and dad hasn't had a rifle do one like that so he hasn't seen one. Anyone care to confirm and school me a little on whether my firing pin looks within spec?
The primers could be a bit on the soft side as well although my Mk.111 No.1 does the same thing with some of the PMC ammo as well but there is no sign of any pressure with 45gns of powder behind a 180gn Sierra ProHunter.
The ability to think and speak doesn't necessarily guarantee intelligence
Location: Third bunker on the right,Central Virginia
Liked 7036 Times on 3112 Posts Likes Given: 1039
Enfields have a tendency as they wear to increase headspace- which is why the No.4 has a changeable bolt head. One indication of excessive headspace may be a stretch mark running around the case about an inch above the rim. Have seen one severe case where the case was cracked, and primers were falling out of the pockets. (and totally oblivious, guy was still shooting the rifle)