Thread: Any ideas? Cratered primers and looks as though the strike is all over the primer

As above any ideas?

.223 rem

Getting the firing pin bushed will sort that out any decent Gunsmith can do it.

Hey mate, yeah it did that with all the ammo I fired, its just a bit of a loose firing pin hole, nothing to be worried about - those loads arent hot from memory.

lighter than normal load???
a lot of rifles will be slightly off centre,so unless you orintate each shell so writing is say on top,you will never know where on primer the pin will strike.but yes agree with Robert,if the hole around the pin itself is too large,you will get primer flowing out like what you show (I THINK) .

Originally Posted by Timmay

Hey mate, yeah it did that with all the ammo I fired, its just a bit of a loose firing pin hole, nothing to be worried about - those loads arent hot from memory.

Brilliant just double checking as the rifle has made it to western bays and my mates young fellah is going to get behind it and sort some crop eating turkeys out any idea on the projo weight?

Good stuff.
I think I made a thread on it, could check my post history, other than that notes are in storage sorry

Remington??

Not uncommon with Remington rifles, caused by the firing pin hole being a bit larger than the firing pin. As a result the primer material wants to flow back.
Overpressure cratering looks a little different.

Originally Posted by mikee

Remington??

Yip model seven iv seen it before but long ago and can’t remember the details not to worry was just double checking before firing them thanks all

All mine do that bar one and that does not have a remington bolt. Common thing it is

Greetings @Kelton an all,
Had a look through fired cases from my rifles and the cratering seems more common with small rifle primers. In .223 my Remington VSSF shows some but the T3 does not with the same primers and similar loads. None of the large rifle primed cartridges shows any including two Remingtons, one in 7mm SAUM and book max loads.
Regards Grandpamac.

It's not likely to be an 'oversize' firing pin hole, there is a requirement for a bit of clearance in a field rifle to allow any crap to get outta the way. What it's most likely to be is an oversized chamfer on the bolt face end of the firing pin hole.

Not ideal - but not a cause for concern unless you are getting pierced primers in which case it needs either bushing (which if done correctly isn't a safety issue) or the firing pin hole chamfer filled in.

It's not likely to be an 'oversize' firing pin hole, there is a requirement for a bit of clearance in a field rifle to allow any crap to get outta the way. What it's most likely to be is an oversized chamfer on the bolt face end of the firing pin hole.

Not ideal - but not a cause for concern unless you are getting pierced primers in which case it needs either bushing (which if done correctly isn't a safety issue) or the firing pin hole chamfer filled in.