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Author Topic: firing pin not hitting primer hard enough to fire  (Read 1441 times)

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Offline tgardner

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firing pin not hitting primer hard enough to fire
« on: February 01, 2012, 02:47:54 PM »
I've got a 325-b bolt action 30-30 that the firing pin just barely dents the primer. Anybody have a cure for that? Any help is appreciated.
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Offline tacklebury

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Re: firing pin not hitting primer hard enough to fire
« Reply #1 on: February 01, 2012, 04:34:17 PM »
Factory ammo or reloads?
 
Sounds like it could have a weakened firing pin spring, have you disassembled the bolt and cleaned back in there?
 
May help to diagnose with pics and some more data.  ;)
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Tacklebury --}>>>>>    Multi-Barrel: .223 Superlite, 7mm-08 22", .30-40 Krag M158, .357 Maximum 16-1/4 HB, .45 Colt, .45-70 22" irons, 32" .45-70 Peeps, 12 Ga. 3-1/2 w/ Chokes, .410 Smooth slugger, .45 Cal Muzzy, .50 Cal Muzzy, .58 Cal Muzzy

also classics: M903 9-shot Target .22 Revolver, 1926 .410 Single, 1915 38 S&W Break top Revolver and 7-shot H&R Trapper .22 6" bbl.

Offline Catfish

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Re: firing pin not hitting primer hard enough to fire
« Reply #2 on: February 02, 2012, 05:33:18 AM »
Could be a briken fireing pin also. If the dent is not prefectly round, that`s probly what it is.
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Offline tgardner

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Re: firing pin not hitting primer hard enough to fire
« Reply #3 on: February 02, 2012, 01:25:17 PM »
I'll get some pictures. It doesn't seem to matter if its reloads or factory. I had one out of six fire the other night when took it out. I'm not sure how to take the bolt apart.
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Offline tgardner

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Re: firing pin not hitting primer hard enough to fire
« Reply #4 on: February 02, 2012, 02:57:42 PM »
The first picture is of the dents the firing pin puts in the primers, four of the cartridges are factory loads, one is a reload. The second shows the bolt cocked. The next shows the bolt fired with a case in the chamber. The next shows the bolt fired without a case in the chamber. The last a picture of the bolt. Sometimes it fires, most of the time it doesn't. Any help disassembling the bolt would be appreciated. Thanks
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Offline tacklebury

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Re: firing pin not hitting primer hard enough to fire
« Reply #5 on: February 02, 2012, 03:51:28 PM »
This was about the best help I could find for you.  Might be a bit technical, but as a start it might help.  You might review it with a local smith too, if you don't care to disassemble the bolt.  Our local guy is very reasonable and quite often charges me nothing if it's a minor fix.  He helps figure out disassembly/re-assembly.  Just a thought, but hopefully this link will help you a bit.  I couldn't make out much detail in your pictures due to fuzziness, if you camera has a "macro" or close-up mode, that might help some.  ;)
 
http://www.sschapterpsa.com/ramblings/gunsmithing_savage_340.htm
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Tacklebury --}>>>>>    Multi-Barrel: .223 Superlite, 7mm-08 22", .30-40 Krag M158, .357 Maximum 16-1/4 HB, .45 Colt, .45-70 22" irons, 32" .45-70 Peeps, 12 Ga. 3-1/2 w/ Chokes, .410 Smooth slugger, .45 Cal Muzzy, .50 Cal Muzzy, .58 Cal Muzzy

also classics: M903 9-shot Target .22 Revolver, 1926 .410 Single, 1915 38 S&W Break top Revolver and 7-shot H&R Trapper .22 6" bbl.

Offline Barstooler

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Re: firing pin not hitting primer hard enough to fire
« Reply #6 on: February 02, 2012, 05:47:56 PM »
As noted above either a weak spring or a dirty bolt/spring.  I have had both.  Because you need to take the bolt apart to inspect the spring, put in a new (stronger if possible) spring while the bolt is apart. 
 
If that does not fix the problem then it will obviously require a new firing pin as the next step.
 
Barstooler
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Offline tgardner

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Re: firing pin not hitting primer hard enough to fire
« Reply #7 on: February 04, 2012, 08:13:08 AM »
Thank you for the link, Tacklebury. Here's some more pictures of that bolt. The first picture shows ( I hope) the firing pin extented. Thanks for all your help you guys
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Offline tgardner

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Re: firing pin not hitting primer hard enough to fire
« Reply #8 on: February 14, 2012, 04:04:53 PM »
Thanks for the help. I got the bolt taken apart and ordered a new spring for the firing pin, put it back together and no more miss fires. thanks again
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Offline tacklebury

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Re: firing pin not hitting primer hard enough to fire
« Reply #9 on: February 15, 2012, 11:57:19 AM »
Great to hear !!  ;)  Enjoy your rifle.  ;)
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Tacklebury --}>>>>>    Multi-Barrel: .223 Superlite, 7mm-08 22", .30-40 Krag M158, .357 Maximum 16-1/4 HB, .45 Colt, .45-70 22" irons, 32" .45-70 Peeps, 12 Ga. 3-1/2 w/ Chokes, .410 Smooth slugger, .45 Cal Muzzy, .50 Cal Muzzy, .58 Cal Muzzy

also classics: M903 9-shot Target .22 Revolver, 1926 .410 Single, 1915 38 S&W Break top Revolver and 7-shot H&R Trapper .22 6" bbl.

Offline tgardner

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Re: firing pin not hitting primer hard enough to fire
« Reply #10 on: February 15, 2012, 04:04:21 PM »
Thanks again!!
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