M1 Garand Gas Plug question
- Thread starter Qbeam
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iH8DemLibz
When All Else Fails.
It's a rightie-tightie/leftie-loosie.
TheOriginalMexicanBob
Ultimate Member
You need to be careful. The M1 gas system requires pressures within a fairly small range. Shoot a too high pressure round and you can damage the op rod.
kalister1
R.I.P.
The burn rate of the powder is just as, if not more important.
Buckeye_Nut
Member
Be very, very wary of reloads. You need to shoot spec ammo or you will damage a piece of history.
I have researched briefly on the subject, and it is looking like 150-180 grain bullets, and checking the burn rate of the powder. This was with the factory gas plug. The ported gas plugs allows some to full capabilty of using higher weight bullets. Still researching.....
Q
Q
pcfixer
Ultimate Member
Red1917
Active Member
https://m.youtube.com/watch?v=ZQ_F1riBth8
This video has a lot of info that I think you'll find helpful
This video has a lot of info that I think you'll find helpful
I guess you're seen Garand Gear's page that shows their pressure trace with different commercial ammo.
http://www.garandgear.com/m1-garand-ammunition
I just stick to reloading by the NRA's guide, found at Master Po's Temple if you haven't got a reprint.
http://masterpostemple.bravepages.com/M1load.htm
http://www.garandgear.com/m1-garand-ammunition
I just stick to reloading by the NRA's guide, found at Master Po's Temple if you haven't got a reprint.
http://masterpostemple.bravepages.com/M1load.htm
Capt Skup
Ultimate Member
I installed a GarandGear plug several years ago, and use 150grain Remington CorLoc or Winchester 150 grain basic hunting ammo. Very good accuracy, the rifle works as advertised. Mine rifle is a James River rebuild, with new barrel and all new springs, it works well.
Doco Overboard
Ultimate Member
Dont forget to grab a new OP rod spring when you order your plug. They're cheap insurance to help make sure the rifle cycles smoothly, the bolt returns to battery and doesn't contact the rear of the receiver. Sometimes you can even see where the front of the receiver gets battered in worst case scenario at the lug where the hole for the barrel has been bored through.
A rifle with a worn spring will develop problems quickly if the spring is not right. Look for flat spots kinks twists and bends on the spring. There is a spec for length but I cant remember it off the top of my head.
I have a GG plug that I use with some G spec handloads for hunting, it works but adds to many clicks to the elevation knob to be completely satisfactory to me. It has proven to help with the consistently of the load in one rifle but I rarely use it anymore for general shooting.
Well, I do not use it all anymore preferring to just load with 4895 or 4064 but I still recommend the spring from a reliable source like Orion 7 or the like.
A rifle with a worn spring will develop problems quickly if the spring is not right. Look for flat spots kinks twists and bends on the spring. There is a spec for length but I cant remember it off the top of my head.
I have a GG plug that I use with some G spec handloads for hunting, it works but adds to many clicks to the elevation knob to be completely satisfactory to me. It has proven to help with the consistently of the load in one rifle but I rarely use it anymore for general shooting.
Well, I do not use it all anymore preferring to just load with 4895 or 4064 but I still recommend the spring from a reliable source like Orion 7 or the like.
Check this out. I have one on my M1A so I can shoot 175gr SMKs. It works really well. Open the set screw, shoot, then tighten until it cycles reliably. This will make sure you don't go over pressure because you're only using enough pressure to cycle the rifle. Since it's parkerized it'll match the rifle also, instead of being silver.
Also look into getting a gas cylinder wrench. It holds the gas cylinder in place so when you remove/replace the gas plug your not putting stress on the gas cylinder.
Schuster DCM Adjustable Gas Plug with Wrench M1 Garand Steel Parkerized
https://www.midwayusa.com/product/1...s-plug-with-wrench-m1-garand-steel-parkerized
Also look into getting a gas cylinder wrench. It holds the gas cylinder in place so when you remove/replace the gas plug your not putting stress on the gas cylinder.
Schuster DCM Adjustable Gas Plug with Wrench M1 Garand Steel Parkerized
https://www.midwayusa.com/product/1...s-plug-with-wrench-m1-garand-steel-parkerized
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