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Breech Face Damage

Posted: Sat Nov 30, 2019 11:38 am
by Hobart
Has anyone noticed damage from the firing pin on the breech face of your AR7? Over time, dry firing will cause a dent. But on my rifle, it seems excessive. Henry replaced my first barrel when it started having misfires due to the dent. I’ve been really careful not to dry fire with the new barrel, but yesterday I did accidentally have one dry fire. That one occurrence has already resulted in a light firing pin dent in the breech face.
Are these rifles really that fragile, or does my rifle have a problem?

Re: Breech Face Damage

Posted: Sat Nov 30, 2019 12:03 pm
by Mistered
That seems more fragile than it should be.

While .22s are NOT supposed to be dry fired I have known of many that have been without any apparent damage or denting the breechface.

I just examined the breechfaces on my 'vintage' Mod 152 Mossberg and Marlin 39A and there are no dents on either - and I garandamteeya they have both been dry fired - a lot.

I'm thinking the firing pin might be a bit too long and could probably be shortened a thou or two to clear the breechface yet still strike the cartridge rim enough to fire.

Re: Breech Face Damage

Posted: Sat Nov 30, 2019 12:11 pm
by Hobart
I’ve considered that possibility. Every video online and on the Henry web site shows people dry firing after the last round, so it shouldn’t do that much damage. I’m going to email customer service and see what they have to say about it. Thanks.

Re: Breech Face Damage

Posted: Sat Nov 30, 2019 12:23 pm
by JEBar
Hobart wrote:
Sat Nov 30, 2019 12:11 pm
I’m going to email customer service and see what they have to say about it. Thanks.

looking forward to hearing what they have to say

Re: Breech Face Damage

Posted: Sat Nov 30, 2019 12:48 pm
by Mistered
Before contacting Henry take your FP out and measure it and ask to talk to someone in 'tech support' (if they have this) and have them measure a new, stock FP. If the same length try to get a positive answer as to what they plan to do to resolve this as simply replacing the FP is not going to correct it.

Re: Breech Face Damage

Posted: Mon Dec 02, 2019 5:08 pm
by Hobart
Well, Henry wants me to return the gun so they can check it out. Should get a return label soon. Kind of a pain. Hope they figure out what’s wrong.

Re: Breech Face Damage

Posted: Mon Dec 02, 2019 5:47 pm
by JEBar
sounds like it may not be a problem they don't see too often .... bottom line, they stand behind their rifles and will take care of the problem .... looking forward to hearing what they tell you about it

Re: Breech Face Damage

Posted: Tue Dec 03, 2019 11:58 am
by Mags
.
They will. They are very good at it.
Hobart wrote:
Mon Dec 02, 2019 5:08 pm
Well, Henry wants me to return the gun so they can check it out. Should get a return label soon. Kind of a pain. Hope they figure out what’s wrong.

Re: Breech Face Damage

Posted: Wed Dec 04, 2019 3:04 pm
by Hobart
Here’s the breech face damage after one dry fire. Firing pin dent visible at the 12 o’clock position.
Still waiting for a shipping label from Henry.
681AD93E-0F08-4E89-9EEA-C2EF795F8A6E.jpeg
681AD93E-0F08-4E89-9EEA-C2EF795F8A6E.jpeg (132.11 KiB) Viewed 922 times

Re: Breech Face Damage

Posted: Wed Dec 04, 2019 4:01 pm
by Mistered
Firing pin dent visible at the 12 o’clock position.
The FP dent appears to be 'canted' off a few degrees - Is the FP at an angle in the bolt?
Also what is the 'smile' at the bottom? Is this considered the barrel 'ramp' ?
I think there are a few issues going on here.