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Schuster High Volume Gas Plug for M1 Garand

This is a discussion on Schuster High Volume Gas Plug for M1 Garand within the M1 Garand Accuracy forums, part of the Rifle Forum category; Just checking to see what are the thoughts on the High Volume gas plugs from Schuster for my M1 Garand. (not the adjustable one) They ...


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Old May 2nd, 2017, 10:07 AM   #1
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Schuster High Volume Gas Plug for M1 Garand

Just checking to see what are the thoughts on the High Volume gas plugs from Schuster for my M1 Garand. (not the adjustable one) They say they will work safely with any commercial ammo? Not planning on using any sst ammo. Anyone have them on your rifles?

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Old May 2nd, 2017, 10:18 AM   #2
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lots do because they have problems finding garand ball ammo.keeps you from bending the operating rod when you use factory or hunting ammo on a regular basis.keep the original one in the buttstock when your running garand approved ammo,swap it out

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Old May 2nd, 2017, 10:36 AM   #3
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There just isn't a one size fits all solution.

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Old May 2nd, 2017, 03:11 PM   #4
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Not planning on shooting a lot of hot rounds just want to be able to shot some hunting rounds without worrying every shot that I might break something. The high volume plug says it increases the volume of the gas chamber by 60%. The rifle cycles perfectly with it in but now it ejects at 11:00-12:00 it used to eject at 1:00-2:00.

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Old May 2nd, 2017, 06:10 PM   #5
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Back when Garands were common in High Power shooting, there were modified gas plugs around that were drilled to different opening for slower powders and even heavier bullets. Some guys had whole sets of these plugs. Most of the time the rifle would have to be shot in an unlimited class or match rifle class as the plug was considered an exterior modification. Sometimes they worked better than others.
It wouldn't surprise me if the Schuster plug was drilled as a compromise, the rifle piling spend cases differently sounds normal enough.
Does Schuster's provide any guide lines of the working range for the ammo?

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Old May 3rd, 2017, 07:00 AM   #6
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No specifications for ammo but it states it will make it safe for ALL commercial ammo. Still not planning on using any really hot loads. Just want to be able to fire a few rounds of 150-165 gr soft points in HUNGER at some game and not worry about hurting my rifle. Other than that usually only shoot 150 gr. Ball Ammo.

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Old May 3rd, 2017, 10:06 AM   #7
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Hopefully some others here who have used the Schuster plug will chime in. It sounds like it was intended for your purposes. I just load my own pills. I have a custom plug for 4350 and 180gr. bullets that works well with that load, but change it out before switching back to ball ammo.

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Old May 9th, 2017, 05:18 PM   #8
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There just isn't a one size fits all solution.
That's not an answer. Focus on the OP's question, dudenal.

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Old May 10th, 2017, 02:44 AM   #9
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I don't go for the one size fits all solution either.

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Old May 10th, 2017, 03:31 AM   #10
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Quote:
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I don't go for the one size fits all solution either.
^^^^^
Me too.

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Old May 10th, 2017, 04:56 AM   #11
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Quote:
Originally Posted by M1ANEWBY View Post
Not planning on shooting a lot of hot rounds just want to be able to shot some hunting rounds without worrying every shot that I might break something. The high volume plug says it increases the volume of the gas chamber by 60%. The rifle cycles perfectly with it in but now it ejects at 11:00-12:00 it used to eject at 1:00-2:00.
Quote:
Originally Posted by Orlando View Post
I don't go for the one size fits all solution either.
I don't agree with a one size fits all solution either. OP are you calling the muzzle of the rifle 6 o'clock or 12 o'clock? No offense intended but I've never seen a Garand eject on the left side of the rifle.

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Old May 10th, 2017, 05:05 AM   #12
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* * * No offense intended but I've never seen a Garand eject on the left side of the rifle.
Yeah, that's not good either.

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Old May 10th, 2017, 06:12 AM   #13
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I have used the Schuster Overbored Non-Adjustable Gas Plug on both 30.06 and .308 Garand Rifles. They will work fine for their intended purpose, a little piece of mind when shooting unknown velocity ammunition, aka, Commercial Hunting rounds.

For example: PPU Garand Safe 30.06 150 grain FMJ Ammo runs about 2700 feet per second, PPU 30.06 150 grain Soft Point ammo runs a little over 2900 feet per second. Will the difference in velocities damage a M-1 Garand? Beats me, but some do not wish to take the chance.

I will tell you that recently I ran a little experiment with HXP and the over bored plug in a 30.06 Garand, with the plug in, the rounds printed a little lower than when I used a regular gas plug.

There are a lot of folks who will argue that the regular gas plug is all you need. They are probably right in regards to the .308 Garands, but again I do not see the harm in having an extra tool in the tool box for specific circumstances. I usually leave the regular gas plug installed on my Garands, and keep the over bored, non-adjustable plug in the butt stock in case I need it.

BTW, I believe the over bored, non-adjustable gas plugs cost me about $20.00 each from Creedmoor.

HTH.

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Old May 10th, 2017, 06:52 AM   #14
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Yeah the muzzle would be 12 it is ejecting now at the 11-12 position. I am not using it for match grade accuracy just want a little peace of mind for the Box or so of hunting rounds I shoot every year. I haven`t even tried it yet with ball ammo so I don`t know if the change in ejection is due to the plug or the ammo? Have had no issues with feeding or ejecting the position of ejection just changed. Thanks for the input guys. I will be switching it back out after hunting. I have hunted big game with a Bow for 42 yrs. and only use my rifles for predator hunting and would like to gun down one of the local big cats with my Garand. The brush here in the NW were I live gives me about 100yd shots max. The change in plug did not have any effect in accuracy though. She shoots solid groups.

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Old May 10th, 2017, 08:11 AM   #15
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Ahhh, what do I know? You all are aware that that the M1 was designed too survive shooting a steady diet of M1 ball, right? How many zillions of NM .30 cal ammo has the M1 fired down range and if you think every pill weighed 173grs I have a special bridge up for sale, anyone interested???

If you looking too put a few rounds of 165grn hunting class bullets threw your M1, I doubt its going too hurt anything.

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