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  #1  
Old 10-01-2010, 09:41 PM
Emerson Emerson is offline
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Firing pin length?




What is the correct length for the firing pin in a CQB chambered for .38 Super?
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Old 10-01-2010, 09:49 PM
WilsonCombatRep WilsonCombatRep is offline
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What is the correct length for the firing pin in a CQB chambered for .38 Super?
Why do you ask?
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Old 10-02-2010, 08:09 AM
Emerson Emerson is offline
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Occasionally I'm getting failures to ignite the primer and upon measuring the firing pin length it is over .020 shorter than my other .38 Super firing pin.
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Old 10-02-2010, 08:38 AM
WilsonCombatRep WilsonCombatRep is offline
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Occasionally I'm getting failures to ignite the primer and upon measuring the firing pin length it is over .020 shorter than my other .38 Super firing pin.
The pin should be around 2.300" in length. Some .38 Super ammo is loaded with rifle primers to prevent primer flow. In that case I would recommend at least a 21# hammer spring. Many .38 super guns have had a 19# installed in them, but our standard 5" spring weight is currently 21#.

Also make sure your fpin channel is clean, which can be another issue with .38 Super. Some reloads will cause primer flow which can leave primer shavings that obstruct your firing pin hole and cause a failure to detonate like you describe. That is best fixed by using a fpin that closely fits your firing pin channel. Max spec there is .0685" or so at the tip. Luckily, firing pins are cheap and easy to rectify if that is your issue.
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Old 10-02-2010, 12:42 PM
Emerson Emerson is offline
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Quote:
Originally Posted by WilsonCombatRep View Post
The pin should be around 2.300" in length. Some .38 Super ammo is loaded with rifle primers to prevent primer flow. In that case I would recommend at least a 21# hammer spring. Many .38 super guns have had a 19# installed in them, but our standard 5" spring weight is currently 21#.

Also make sure your fpin channel is clean, which can be another issue with .38 Super. Some reloads will cause primer flow which can leave primer shavings that obstruct your firing pin hole and cause a failure to detonate like you describe. That is best fixed by using a fpin that closely fits your firing pin channel. Max spec there is .0685" or so at the tip. Luckily, firing pins are cheap and easy to rectify if that is your issue.
The firing pin in the gun that is giving the problem is only 2.270" long, so it is .030 short. Looks like I need to buy a new firing pin.

The firing pin in my other gun is 2.292" which is only .008 shorter than your recommendation.
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Old 10-02-2010, 12:45 PM
WilsonCombatRep WilsonCombatRep is offline
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Quote:
Originally Posted by Emerson View Post
The firing pin in the gun that is giving the problem is only 2.270" long, so it is .030 short. Looks like I need to buy a new firing pin.

The firing pin in my other gun is 2.292" which is only .008 shorter than your recommendation.
send me you address via email and I will get one out. The actual spec is between 2.290"-2.296" so for some reason your pin is short....will look into that

Last edited by WilsonCombatRep; 10-02-2010 at 12:48 PM.
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Old 10-02-2010, 08:12 PM
Emerson Emerson is offline
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I PM'd you my address. Many thanks!!!

Wilson ROCKS !

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