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Help on M14 stock ( newbie)

This is a discussion on Help on M14 stock ( newbie) within the Stock forums, part of the Rifle Forum category; Would looks likes a new nos bolt be correct answer Tony?... ....He says crossing fingers and holding his breath....


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Old March 2nd, 2017, 09:23 PM   #46
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Would looks likes a new nos bolt be correct answer Tony?... ....He says crossing fingers and holding his breath.

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Old March 3rd, 2017, 06:30 AM   #47
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It looks like the bolt is fine and was not a parade bolt. I can't find any evidence of welding or extra machining on the bolt face or the back of the bolt. I went to my other rifles and compared the bolt faces and they show similar markings as this one.

I also can't find any evidence that the bolt lugs were lapped or worn, so it appears to be a good condition HRT bolt. I removed the barrel from the receiver and tried it in my Bula TFL receiver. It times around 15˚ (where I would hope it would) and headspaces at 1.636" with his HRT bolt inserted into my receiver. That means that if I timed the receiver as-is, the headspace would land around 1.633" (right in the middle of GO & NO-GO).

I also checked the barrel and the TE measurement is 0.5 (this is good!).

So, if all goes as planned, I'll get the new receiver and it will all go together without a hitch and already be headspaced correctly. Now all we need is a new cartridge clip guide.

Tony.

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Old March 3rd, 2017, 07:51 AM   #48
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send me your address; I have an extra.

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Old March 3rd, 2017, 07:58 AM   #49
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I personally don't like the way the bolt face looks, could have been painted because the bolt face won't take parkerizing, indicator of a reclaimed bolt. To me its obvious that the face has seen some work.

That doesn't mean it's a bad bolt, just that it may be a welded bolt that got unwelded

If bubba got to messing with the receiver, who knows where he stopped. You know bubba gotta play.

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Old March 3rd, 2017, 08:59 AM   #50
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I would not trust whoever welded the receiver with a 9v battery ( that's a given)
I think the refinish with a moly coat of some sort was done to cover the park mismatch on receiver from weld. He just did entire rifle to make it all match.

Tony, happy the 72 NM barrel and bolt all are so good. Should be a shooter!
You and everyone offering help on this have been wonderful, thanks again all!!

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Old March 3rd, 2017, 10:55 AM   #51
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Quote:
Originally Posted by XM25Ren View Post
I personally don't like the way the bolt face looks, could have been painted because the bolt face won't take parkerizing, indicator of a reclaimed bolt. To me its obvious that the face has seen some work.

That doesn't mean it's a bad bolt, just that it may be a welded bolt that got unwelded

If bubba got to messing with the receiver, who knows where he stopped. You know bubba gotta play.

Ren
It's hard to tell by the picture what the bolt face really looked like. Keep in mind that I scraped the paint off with an X-acto knife and scrubbed it with a bronze bristle brush. It appears that the parts were never re-parked, but instead were painted, so I imagine that all the parts will have the original finish underneath. I'll try to hit it with some acetone and see if I can clean it up. The firing pin hole does not have a bevel. Having a bevel, I believe, is an indication of a reclaimed drill bolt.

Tony.

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Old March 3rd, 2017, 11:18 AM   #52
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Hard to tell , acetone or laquer thinner should remove the paint.I'd detail measure ,lugs,fp hole,bolt face to right lug.
See if anything is off spec .

A good bead blast will usually find a welded bolt .

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Old March 3rd, 2017, 12:17 PM   #53
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That bolt face looks all wrong. NIW bolt face have machine marks and they always look the same. The only thing that changes is the primer burn you see from firing a weapon. No machining on the bolt face = suspect bolt. And on top of that it was painted. No USGI bolt was painted as far as I know. Well, IMHO, the signs are screaming, NG bolt!

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Old March 3rd, 2017, 02:07 PM   #54
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Wow that canted rear end is really dramatic! It would be interesting to strip the paint off and see what's underneath.

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Old March 4th, 2017, 07:08 AM   #55
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IRON WORKER had agreed to bead blast and inspect the bolt. I'll fully trust his assessment.

Tony.

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Old March 5th, 2017, 02:13 PM   #56
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Thank you Iron Worker! Appreciate the help on this one.

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Old March 14th, 2017, 05:30 AM   #57
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I ran the bolt through 200f caustic soda wash ,which didn't even phase the bake on paint.But it did clean remnants off face of bolt.

Its original ,all specs check well within blueprint .
Bolt face to right lug - .6165"
FP hole - .0795"
Rear support of - .724"
Left lug - .4605"
Right lug- .5745"

What is seen is a very slight guald mark that the cutter made When originally faced,very shallow and interupted .
You can see concentric rings from cutter as well.

Interior of FP hole is clean with no evidence of any weld or other issue.

Bolt lugs appear original and never lapped with no pressure seating or wear.


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Old March 14th, 2017, 07:00 AM   #58
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Here's anouther pic.


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Old March 14th, 2017, 07:42 AM   #59
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Thanks IRON WORKER!

We're going to send all the parts back to the original owner who's going to have all the parts refinished to match, then rebuild the rifle on a new Bula receiver which I already have.

Tony.

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Old March 14th, 2017, 10:29 AM   #60
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Pottery grade bead blast to face.


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