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  #1  
Old 03-12-2011, 04:49 PM
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Join Date: Jun 2009
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M-14/Garand rechambering question.


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Has anyone ever tried to rechamber one to a different caliber altogether? Say a 358 win for the 308 variety or a 338-06/35 whelen for the 30-06 variety.

The thought just happen to cross my mind. Not that I'd do it, but it seems to me that they would make a great woods gun in those calibers. Not that the 308s and 30-06s really needed that much help to begin with.
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  #2  
Old 03-13-2011, 03:20 AM
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Or a smaller caliber for that matter.
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  #3  
Old 03-14-2011, 04:44 PM
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Lugged my Garand around the woods once, gave me a lot more respect for the dog faces that lugged them around in WW2.
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  #4  
Old 03-14-2011, 05:42 PM
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Lynn - they got lugged around in Korea, too. Ask me how I know!
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  #5  
Old 03-16-2011, 12:59 PM
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Well...I figure it this way. If soldiers could lug one in combat, I can walk around at a leisurely pace with one. I'm only 34, go to the gym, have a very physical job, bla bla. So the thought of lugging one around doesn't bother me. Not being able to afford one bothers me. BUt whatever.

But, it seems like someone, somewhere would have rechambered one. Even if only for poops and giggles. I'm sure a M1 Garand chambered for the 35 Whelen would be a potent bear rifle. Super fast follow ups......
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  #6  
Old 03-19-2011, 04:31 PM
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Quote:
Originally Posted by GMFWoodchuck View Post
But, it seems like someone, somewhere would have rechambered one. Even if only for poops and giggles. I'm sure a M1 Garand chambered for the 35 Whelen would be a potent bear rifle. Super fast follow ups......
One thing to keep in mind with both the M14 and the M1 actions is that they are designed to operate within a very narrow range of pressures. Too little pressure, and you have a strange-looking manually-operated bolt-action rifle that can bite you if you don't work it right. Too much pressure and you start bending parts, like op-rods, especially on the M1. Powder burning rate and quantity, and bullet weight, are both important considerations. With the M1, bullets heavier than about 180 grains or so can damage the rifle this way. It's happiest around 168-172 grains, which is what the cartridge was originally designed for.

The M1/M14 barrel and bolt assembly is extremely strong -- see Hatcher's Book of the Garand for a description of the experiments he performed. It's the semi-auto parts that can fail.

The most common re-chambering I'm aware of is the conversion of the M1 from 30-06 to 7.62 Nato. These cartridges have very similar operating characteristics, so the only problem is that the magazine well is designed for the longer '06 case. For a time, do-it-yourself kits were available that glued a shim into the front part of the M1 chamber to convert it to 308, but the ones I saw fired ejected the shim with the spent case after only a couple of rounds. I believe the Navy tried this method, but gave it up as unreliable.

Best,

Trad A. Non
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  #7  
Old 03-26-2011, 03:57 PM
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Join Date: Jul 2003
Location: Republic of Texas
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Rebarrel is a better phrase than rechamber. In the late 1950's and early '60's, it was popular to rebarrel the Garand. They even restocked them into "sporter" configurations. I have seen them in .25-06, .270 and .35 Whelen, meaning that a .338-06 would be reasonably simple. The M1A (and Garands) could follow suit with the .243/.260/.270 Redding/.338 Federal/.358 lineup. I would check with someone like Clint McKee at Fulton Armory. By far the most critical aspect would seem to be diameter of the gas ports for the various calibers. Hope this helps.
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  #8  
Old 12-05-2012, 01:28 PM
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Join Date: Mar 2011
Posts: 7
gas plug

Brownells sells an adjustable gas plug for M1 and M1-A's . Thirty bucks , no gunsmithing and not a permanant change that can be done in less than a minute. I use them and love them. Part # 100-001-733AH for the M1 and #100-002-329AH for the M1-A.
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