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 Not enough headspace on rebarreled T53

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mogunner
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PostSubject: Not enough headspace on rebarreled T53   Fri Mar 02, 2012 9:00 pm

Like it says, I changed the barrel on my Omega T53. Now the bolt wont shut all the way, not enough headspace. Tried another bolt, swapped bolt heads, no difference. Colored the end of the barrel and you can see where the bolt head is hitting it.
Any tips or tricks to this? If I face the end of the barrel, will the chamber still be deep enough or will that have to be machined as well? The bolt turns about halfway to full lock before it stops, it's not hitting the extractor as I have the slot timed right for it, it's the actual bolt head touching. [You must be registered and logged in to see this image.]
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PostSubject: Re: Not enough headspace on rebarreled T53   Thu Mar 08, 2012 5:27 pm

I can't give you a experienced answer but just by figuring on it I would say that you would have to find out where the throat on the chamber is and then see if the bullet is engaging the rifling or how much extra space is there which will determine how much you can face the barrel before you run into problems. But I'm guessing you already knew that and were just wondering how to go about it? [You must be registered and logged in to see this image.] No clue here. Actually I can see the hard way would be to use a bore light and a fine wire and just stick the wire in the end until you feel it's right at the start of the rifling then measure that length and the length of a few bullets to get an average (or find the specs on them and/or the chamber). The difference will give you the amount of extra barrel chamber you have. Once again I'm sure there is a much easier way. Like grinding the rim off a case and sliding it in the chamber [You must be registered and logged in to see this image.] BTW, Hi MO! [You must be registered and logged in to see this image.] [You must be registered and logged in to see this image.]
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PostSubject: Re: Not enough headspace on rebarreled T53   Fri Mar 09, 2012 12:01 am

Actually I'm in way over my head on this. It's a POS rifle that I am trying to save in any way without spending forty times over what the dang thing cost me. I'm thinking just go ahead and face the barrel, if it doesn't work then I'll cut the end of the barrel off and use it as a fixture in my sight tool "factory". Found an action for a 91/30 for $60 shipped with a good bore, thinking about getting that, cut the barrel down to around 26 inches or so and put it in the T53 stock, use the T53 bolt and mag and see if it'll shoot.
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PostSubject: Re: Not enough headspace on rebarreled T53   Sat Mar 31, 2012 8:34 pm

I just now seen this thread. Sleep

You do have about .020" typically before the case shoulder hits the shoulder land in the chamber. So you could possibly take that much off and see how it fits.

Personally, I would look at the locking lugs on the bolt head. Might be easier to throw that in the lathe and take a tad off them.
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PostSubject: Re: Not enough headspace on rebarreled T53   Sat Mar 31, 2012 8:55 pm

Never thought of that... Mad
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PostSubject: Re: Not enough headspace on rebarreled T53   Sat Mar 31, 2012 9:20 pm

Theres a rule with Mosins.
If you over think it, it wont work.
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PostSubject: Re: Not enough headspace on rebarreled T53   Sat Mar 31, 2012 10:57 pm

So the RIGHT way to do it would be face the rear of the barrel and have a smith cut the chamber deeper, right? If I alter the bolt head, this will be a ONE bolt gun for sure...I'm thinking about parting it out on ebay and forums and see if I can get enough out of it to get another one, or just say to heck with it. I have my 91/30 that's an excellent shooter, and I've kinda drifted over to my newest toy, a Saiga in 7.62x39 that I just did the conversion on. [You must be registered and logged in to see this image.]
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