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Tallest Midget
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Discussion Starter · #1 ·
I have an idea for building a mosin with a heavy barrel.

I found barrel blanks in 7.62 that are 25 inches long, and have a twist rate at 1:11 in a 1.25 inch thick barrel. Question is should I modify the receiver so I can press the barrel into the receiver, or should I thread the barrel to fit the receiver?
 

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Putin, the new Ceasar. Veni,Vidi, Vici!
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The receiver is not designed to have a press fit. If you mill the threads out the walls may be too thin to handle the stress of the press fit. You should have the barrel threaded.
 

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Bangkok rules. Now who has a can?
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receiver was bead blasted, the brown ( i had a lot of John Norrell ) barrel and now receiver is just to keep the metal from rusting during final chambering, timing and bedding. will all be re bead blasted and finished in another color, most likely black.

note this is the classic barrel just turned down with a spacer added. it'll make the final fit/finish much nicer.
 

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Here are earlier pics of the homemade barrel vice and action wrench as well as the barrel as it came from Century, then the barrel with the added spacer
 

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Interesting, but I have a couple questions. What is the purpose, to fire 54R handloads? Since I don't see surplus ammo being accurate enough to benefit much from an improvement to the Mosin. If so, would you be loading handloads with .311 bullets, or would you be using a .308 barrel to take advantage of the selection of .308 bullets? (I never saw this barrel before). It's certainly interesting, I'd be quite interested in seeing a Mosin that shoots surplus ammo really well, if it were possible to improve upon the accuracy of surplus ammo.
 

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Reason for this I'm still trying to figure out. I live my life always saying "it sounded like a good idea" I have at least a half dozen other mosins and thought it'd be a fun project. As for ammo I'll try surplus first if that doesn't work either reloads or factory match ammo. It's more of a fun project than anything we are building 3 all together. Will keep y'all posted.
 

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Discussion Starter · #16 ·
I was wondering real quick. If I can match up a barrel chambered for 7.62X51 would that cause and feeding issues if I used the 7.62X51 instead of using 7.62X54r. I believe the 7.62x51 is the current production NATO .308
 

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Putin, the new Ceasar. Veni,Vidi, Vici!
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boke said:
I was wondering real quick. If I can match up a barrel chambered for 7.62X51 would that cause and feeding issues if I used the 7.62X51 instead of using 7.62X54r. I believe the 7.62x51 is the current production NATO .308
You'd have to modify the bolt because the .308 rims are smaller. Its probably more trouble than its worth.
 

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Putin, the new Ceasar. Veni,Vidi, Vici!
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boke said:
Should I just buy you a couple of beers and pick your brain in person Mad Russian?
I see you like slim pickins'! I'm not a gunsmith by any means, just a tinkerer. The 30-06 is closer in length to the 7.62x54, so it will fit the magazine better. But you would have to modify the bolt rim and extractor, rechamber the barrel, etc... This is a job for a gunsmith/machinist.
I saw videos where it took 500 ft/lbs just to remove the barrel, and 250ft/lbs to put it back in.
 

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Discussion Starter · #20 ·
Mad Russian said:
I see you like slim pickins'! I'm not a gunsmith by any means, just a tinkerer. The 30-06 is closer in length to the 7.62x54, so it will fit the magazine better. But you would have to modify the bolt rim and extractor, rechamber the barrel, etc... This is a job for a gunsmith/machinist.
I saw videos where it took 500 ft/lbs just to remove the barrel, and 250ft/lbs to put it back in.
You seem very knowledgeble. And it seems that a lot of people round here don't exactly hold the local smiths with high regard.
 
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