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Does an adjustable gas plug make it possible to shoot modern pressure loads (like high power big game loads) or loads heavier than 180 grains in a Garand, and will it wear the barrel and chamber any more than it would on say, a recent production Remington or Savage?
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......................Last edited by campperrykid; 07-09-2011, 4:35 PM." ... in common use at the time , for all lawful purposes , including self defense . "
Tony from New York .
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Pickaxe Handles Rule , The Battleship Missouri is usually a serious attention getter with more clout than just it's weapons/armor/mobility could generate. South Korean volunteers with Claymores strapped to thier chests and clackers in hand are a clear indication of Allied resolve. Puts the ! on the end of :
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As far as I know, Yes. The adjustable plug will allow the Garand to shoot modern pressure loads, but you will have to fiddle with it to make it work. Like the instructions say: Keep it wide open on the first shot. Then slowly screw in the screw 1/4 to 1/2 turns each shot until the action cycles correctly.
As far as the barrel/chamber, I don't know.
Good luck!Comment
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Yes an adjustable plug will let you shoot modern loads and you set it exactly as echo884 described. They are currently on sale at Midway. You have to reset it for different loads. I went to the trouble of putting one in and then bought 8 pounds of IMR 4895 and duplicated the M1 ball load and didn't need it after all.sigpicComment
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Even with the adjustable screw you should stay with weights under 180gr. It is possible to go heavier, but Schuster warns you of this. Info is on their wensiteComment
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A search by brand name will likely bring up a lot of detailed discussion about the adjustables." ... in common use at the time , for all lawful purposes , including self defense . "
Tony from New York .
Conflict Resolution 201:
Pickaxe Handles Rule , The Battleship Missouri is usually a serious attention getter with more clout than just it's weapons/armor/mobility could generate. South Korean volunteers with Claymores strapped to thier chests and clackers in hand are a clear indication of Allied resolve. Puts the ! on the end of :
Don't MESS with US !Comment
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The issue isn't the chamber pressure of the load it's the amount of gas pressure that the load produces in the gas cylinder that operates the action of the rifle.
I sell a ported Gas screw that works on a different principal then the vented gas plugs do. If interested you can read about it here.
M1 Garand Ported Gas Plug
I've also recently posted some information on commercial ammunition over on the CMP webpage. You might find that discussion of interest.
EricComment
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Do so at your own risk (or that of your rifle). Isn't there still plenty of surplus 30 06 still around?
And won't your "high pressure" loads just become the "low pressure" loads you don't want to shoot?Comment
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Surp. 30-06 is magnetic, and therefore not allowed at most all Socal ranges, which is exactly why I got a plug for my CMP M1. There's no way I can make it out to BLM as much as I want to between working two jobs and college, so Angeles it is with the plug and modern ammo.
You misunderstand the point of the plug... it doesn't really change the bullet's velocity or the pressure behind it down the bore. What it does regulate is the flow of gas back to the op-rod. Too much pressure there, and you bend and op-rod, or worse, crack your receiver. No bueno.Originally posted by CSACANNONEERAh, the old "form over function" argument. I guess some people would rather be seen with a hot blonde who won't put out than with a "Neil 8" who will make you
.Comment
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One more big advantage to the adjustables , even with USGI and Allied milspec ball:
The adjustables reduce cycle speed and thus reduce parts wear , a significant consideration given the current trends in parts prices . The Garand was designed & built to work all the time , under horrific conditions . The M1 is overgased for normal civilian hobby use." ... in common use at the time , for all lawful purposes , including self defense . "
Tony from New York .
Conflict Resolution 201:
Pickaxe Handles Rule , The Battleship Missouri is usually a serious attention getter with more clout than just it's weapons/armor/mobility could generate. South Korean volunteers with Claymores strapped to thier chests and clackers in hand are a clear indication of Allied resolve. Puts the ! on the end of :
Don't MESS with US !Comment
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There are two known gas ports on the market to safely allow commercial ammo usage but I still choose to keep my commercial round choices under 170gr. With the adjustable gas plug you can turn the M1 Garand into a bolt action rifle in the extreme setting. It would not wear out the gun but more likely damage the gas system if a gas plug was not used correctly.
The McCann Adjustable Gas System
(My opinion easier to use - 5 preset jets, match the jet to the different ammo)
Schuster M1 Garand Adjustable Gas Nut
(Not as easy to use, you need to readjust from the beginning everytime you change ammo)
Brownells sells both plugs and Midway the Schuster only.Comment
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is overgased
Not surprising at all. Most military weapons are. I know the AK sure is.sigpic
7-6-2 FTMFW!
"...and an old German guy said there was a bit of an unsaid joke about the Nazi salute; apparently when they clicked their heels and raised their arm up in the air in a Nazi salute, they were saying, "we're in this much s___."Comment
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Originally posted by CSACANNONEERAh, the old "form over function" argument. I guess some people would rather be seen with a hot blonde who won't put out than with a "Neil 8" who will make you.Comment
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