Rebarreling and caliber change in a springfield armory M1 Garand

vondnik

vondnik

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Well afeter many years of service the barrel of my garand is showing sign of wear. The prior owner was using corrosive ammunition and was definatly lacking in the cleaning skills required so pitting is getting to be a problem. She is starting to be inconsistant on the bench, so it's not a error 5 ( error located 5 inch behind the rear sight....), using match ammo.

Now the question is: how mutch work would be involved to change the caliber from 30-06 to .308. I'm thinking of changing caliber because I already have all the reloading setup for .308 but not for the 30-06 and good quality ammo is getting expensinve and she is the only gun I own in 30-06.

Since I already need a new barrel as this one is shot out I was wondering just how mutch work it would be for the swap, what part would I need to change and if it's a job that needs to be done by an armorer or if a simple stait forward process. If machining is required that is not a problem at all (15 year experiance as a toolmaker...). My gunsmitting skills are limited but I am learning from the scool of hard knocks, I would of course have the gun inspected by a qualified armorer prior to making the firts trigger pull..(for obvious safety reason).

thnaks for the info
 
Installing a .308 barrel is no different than fitting a .30-06 one, if you are talking about commercial replacements. A GI '06 barrel would probably be easiest, and should be a direct swap, with a check of headspace.
To install an almost finished commercial barrel in either caliber, torque it in so that it is properly timed - may need a minor adjustment to the shoulder if it stops short - then use a pull reamer to finish the chamber and set headspace. Its perhaps a half hour job. While not necessary for function, a spacer block in the magazine will prevent insertion of a clip of .30-06 cartridges in a .308 rifle.
 
I'd try a want ad in the EE. There's no telling what might turn up. You can import a barrel yourself, if you want to. Brownells will export, if you supply in Cdn. import permit. So will Numrich.
 
"...May not need a permit..." Yes, you will. Gunparts is listing newly made .308 barrels at $159.99US. You'll need the U.S. export permit that requires the Canadian import permit to get.
They also list post-war .30-06 surplus barrels at $73.45US. You'll likely need the export permit for that too just because it's a firearm part.
 
vondnik said:
ok how do i get the import permit...sorry for the noob questions. I guess that the US export permit has to be acquired by the US supplier?
Click to expand...

to get the import permit you have to contact international trade. as them to send you a coiple of copies, they are free anyways.
 
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