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Old 07-02-2012, 06:12 AM
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Mauser heat treating

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Well in order to take a Mauser 98 action off the original barrel my father used am oxyacetylene torch to heat the barrel and receiver up to red hot. I understand this takes the case hardening off. I don't necessarily want to heat treat the action in the sense of hardening it, so what I need is to soften the entire action then case harden it back. How deep would the case hardening need to be? Or if this is a bad idea where can I buy a stripped Mauser 98 military action?

FYI I am planning on a using a 22-250 AI barrel with the action.
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Old 07-02-2012, 08:31 AM
Barry S's Avatar
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I think this may be a job for a professional. Take the action to a gun smith and see what he would charge to do it or send it out to have done. It may be less than what you can find another action for.
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Old 07-02-2012, 10:25 AM
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I think this is a job for another action, to be honest......

Originally Posted by faucettb
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Old 07-02-2012, 12:37 PM
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Lots of military actions were put on with the receiver ring heated up to expand it, then the barrel screwed in. and that is the only way to get the barrels off.

Mearly using a torch doesn't mean the heat treatment was changed.

A met lab can test it for you. It has been years since I had one tested, but then It was about $15. they can also do any heat treating you might want.
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Old 07-02-2012, 01:35 PM
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Heating one up may not, but "red hot" sure would - I know that I wouldn't knowingly use an action that'd received that abuse.

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Old 07-02-2012, 07:25 PM
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Join Date: May 2012
Location: Ellsworth, Maine
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I've removed like 100 or more barrels from Mauser actions and never had to heat an action to get the barrel off. Not once. I have had to make the decision that I would have to damage the exterior of the barrel to save the action and did that cheerfully as I was rarely trying to save the barrel for further use.

A properly fitted barrel on a M98 action has most of the binding forces on the flat face at the end of the barrel inside the receiver ring, not where the barrel meets the outside shoulder of the receiver ring.

When done right, the outside shoulder and the barrel are just in light contact and the barrel has stopped rotating in the threads because of the pressure between the barrel face and the shoulder it meets or butts up against the shoulder inside the receiver.

I would scrap that receiver if it was heated to the degree that you say. The alternative would be to take it to a heat treating shop and have them re-do the heat treatment.

M98's were never case hardened, that is a heat treatment process that was used mostly on cast iron or cast steel receivers. The M98's were made of good quality carbon bearing steel and heat treated in manufacture.

Even guns that have been through disasters like gun shop of home fires at much less than saturated red hot temperatures should not be consider safe to shoot.

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Old 07-02-2012, 11:06 PM
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Originally Posted by Rangr44 View Post
Heating one up may not, but "red hot" sure would - I know that I wouldn't knowingly use an action that'd received that abuse.

What he said...
Still Learnin' as I go!

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Old 07-03-2012, 03:42 AM
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If I know an action has been through a house fire, much less heated red-hot with a torch, there is no way I am using it.
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Old 07-04-2012, 04:04 PM
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Location: Florida
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Well I believe I'll take it to a local certified gunsmith and see what he thinks, and if I need a new action I'll do that. Thank you all for the input!
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