Hello all, here is today's article posted on TheArmoryLife.com. It is titled “Bought an M1A, Now What?” and can be found at https://www.thearmorylife.com/bought-an-m1a-now-what/.
Bought an M1A, Now What?
- Thread starter Mike H.
- Start date
Talyn
SAINT
Keep things simple.
Don't load it up with too much optics. Use a quality optics mount & not the SA ones.
Learn the platforms' idiosyncrasies.
Learn to properly lube & maintain it.
Run ammo made for it, and not hunting loads without a adjustable gas plug.
www.schustermfg.com
Don't load it up with too much optics. Use a quality optics mount & not the SA ones.
Learn the platforms' idiosyncrasies.
Learn to properly lube & maintain it.
Run ammo made for it, and not hunting loads without a adjustable gas plug.
M1A Adjustable Gas Plug
Shop now for the finest in custom made M1 Garand & AR-15 Tools and Accessories. Get our highly rated Schuster Adjustable Gas plug for your M1 or M1A
www.schustermfg.com
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CAPMARINE276
Master Class
M-14 in boot camp
Blackfeather
Custom
Field strip, clean, grease and shoot a few hundred rounds using iron sights, then clean & lube again. Confirm reliable operation, and make sure that you are very good with the factory iron sights before considering any modifications / upgrades. I see no need for an adjustable gas plug... the factory self adjusting gas system works really well for me.
When it comes to modifications and upgrades you will have many to choose from, and I have tried most of them.
These are my favorites.
When it comes to modifications and upgrades you will have many to choose from, and I have tried most of them.
These are my favorites.
Talyn
SAINT
To put a few things in perspective, having owned (still do) and used M1As, and M1 Garands, since the 80's, with some use in competition, I'm not ant-M1A but look at each platforms pluses & minuses.
The use of an adjustable gas plug in either is one of an on-going difference of opinion amongst those with a lot of mileage with both. But, being 90+ yr. old operating systems (The M14 being an M1 variant) folks new to these platform may not know their idiosyncrasies.
As in other threads have said...
"It's all about what you can send down the tube without destroying the delivery system."
"Neither the M1 nor the M14 system will tolerate excessive port pressures without hurting something."
The M14's White Gas System is designed for 12,500 KPSI, CUP. +/- 2KPSI (max 14,500 CUP). The port is about 14-1/8 inches from the bolt face, or about 12.5 inches of bullet travel down-bore. The port pressures for the Garand on the high end of the envelope are about the same.
That being said, also..."the M-14 White expansion and cutoff system is far superior to the Original Garand Gas System." And..."The White Expansion and Cutoff system (M14/M1A) is more adaptable to variations in Gas Pressure (Less likely to bend an op rod with higher velocity Loading's) than the Long Stoke Gas Piston system used in the M1 Garand."
In competition, using non-mil-spec ammo, the "Army MTU did several things to lower port pressures on the M14s. (1) They cut slits with wafer discs in Dremel tools length ways down the large diameter of the piston. (2) They are drilled extremely small holes in the end of the gas plug."
There are second-hand reports of receivers cracking from bolt impact, but these also at least hint or openly admit hot-rodding the loads with heavier bullets. ...from those who shot hundreds and even thousands of 190-grain bullets at 2400 or so FPS from the M14-type that you can get excessive wear and battering on the rear of the op rod and the bolt impact area in the receiver. Excessive port pressure loads move attempted extraction too early in the firing cycle, resulting in rim lift and occasional failures to extract (the empty gets withdrawn and then put back in the chamber). The bolt almost always got far back enough to cock the hammer.
All this being said, if one chooses not to watch out what one feeds either the M1A or M1 Garand, problems can occur. A reasonable option for both platforms is an adjustable gas plug that once adjusted to whatever non-spec ammo you want to use, will still function fine with the ammo that either were designed to run.
So, with those new to the platform look for ammo that states it's made as mil-spec for either platform.
The bottom line is it's your responsibility to get the right ammo for either rifle, and if you don't blame SA if something goes south since we all take risks every day.
My .02
Bonus - Some History
BTW - I may have one of my standard's rebuilt into a SEI Crazy Horse' M21A5 DMR, as per this TAL review.
www.thearmorylife.com
The use of an adjustable gas plug in either is one of an on-going difference of opinion amongst those with a lot of mileage with both. But, being 90+ yr. old operating systems (The M14 being an M1 variant) folks new to these platform may not know their idiosyncrasies.
As in other threads have said...
"It's all about what you can send down the tube without destroying the delivery system."
"Neither the M1 nor the M14 system will tolerate excessive port pressures without hurting something."
The M14's White Gas System is designed for 12,500 KPSI, CUP. +/- 2KPSI (max 14,500 CUP). The port is about 14-1/8 inches from the bolt face, or about 12.5 inches of bullet travel down-bore. The port pressures for the Garand on the high end of the envelope are about the same.
That being said, also..."the M-14 White expansion and cutoff system is far superior to the Original Garand Gas System." And..."The White Expansion and Cutoff system (M14/M1A) is more adaptable to variations in Gas Pressure (Less likely to bend an op rod with higher velocity Loading's) than the Long Stoke Gas Piston system used in the M1 Garand."
In competition, using non-mil-spec ammo, the "Army MTU did several things to lower port pressures on the M14s. (1) They cut slits with wafer discs in Dremel tools length ways down the large diameter of the piston. (2) They are drilled extremely small holes in the end of the gas plug."
There are second-hand reports of receivers cracking from bolt impact, but these also at least hint or openly admit hot-rodding the loads with heavier bullets. ...from those who shot hundreds and even thousands of 190-grain bullets at 2400 or so FPS from the M14-type that you can get excessive wear and battering on the rear of the op rod and the bolt impact area in the receiver. Excessive port pressure loads move attempted extraction too early in the firing cycle, resulting in rim lift and occasional failures to extract (the empty gets withdrawn and then put back in the chamber). The bolt almost always got far back enough to cock the hammer.
All this being said, if one chooses not to watch out what one feeds either the M1A or M1 Garand, problems can occur. A reasonable option for both platforms is an adjustable gas plug that once adjusted to whatever non-spec ammo you want to use, will still function fine with the ammo that either were designed to run.
So, with those new to the platform look for ammo that states it's made as mil-spec for either platform.
The bottom line is it's your responsibility to get the right ammo for either rifle, and if you don't blame SA if something goes south since we all take risks every day.
My .02
Bonus - Some History
BTW - I may have one of my standard's rebuilt into a SEI Crazy Horse' M21A5 DMR, as per this TAL review.
Review: Custom Smith Enterprise M21A5 “Crazy Horse” Rifle - The Armory Life
If you have not heard of Smith Enterprise, Inc., it is one of the most respected names in the M14/M1A world. In addition to providing civilian customers with a wide range of popular products for the platform, the company has also played an important role in both developing and providing weapon...
www.thearmorylife.com
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Blackfeather
Custom
Yes you can set up a dedicated competition rifle for very specific conditions and needs, but you do so at your own risk. Ron Smith of Crazy Horse fame will tell you that an adjustable gas plug is not needed on an M14 battle rifle... I have been shooting Crazy Horse rifles since 2005, and all of them receive a steady diet of accurate mil-spec ammunition resulting in zero failures. I added a suppressor in 2006... zero gas system modifications, zero failures.
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I bought my M1A Standard rifle the day I found out Obama was going to be President. I call it my BHO gun.
M1As are truly wonderful rifles. "Lock, Stock, and Barrel." Heavy yes, but SOLID!
Shoot it, clean it, and shoot it some more. That is why we all bought one. They are not "wall hangers!"
M1As are truly wonderful rifles. "Lock, Stock, and Barrel." Heavy yes, but SOLID!
Shoot it, clean it, and shoot it some more. That is why we all bought one. They are not "wall hangers!"
The garand is by far less ammo sensitive than an M14.To put a few things in perspective, having owned (still do) and used M1As, and M1 Garands, since the 80's, with some use in competition, I'm not ant-M1A but look at each platforms pluses & minuses.
The use of an adjustable gas plug in either is one of an on-going difference of opinion amongst those with a lot of mileage with both. But, being 90+ yr. old operating systems (The M14 being an M1 variant) folks new to these platform may not know their idiosyncrasies.
As in other threads have said...
"It's all about what you can send down the tube without destroying the delivery system."
"Neither the M1 nor the M14 system will tolerate excessive port pressures without hurting something."
The M14's White Gas System is designed for 12,500 KPSI, CUP. +/- 2KPSI (max 14,500 CUP). The port is about 14-1/8 inches from the bolt face, or about 12.5 inches of bullet travel down-bore. The port pressures for the Garand on the high end of the envelope are about the same.
That being said, also..."the M-14 White expansion and cutoff system is far superior to the Original Garand Gas System." And..."The White Expansion and Cutoff system (M14/M1A) is more adaptable to variations in Gas Pressure (Less likely to bend an op rod with higher velocity Loading's) than the Long Stoke Gas Piston system used in the M1 Garand."
In competition, using non-mil-spec ammo, the "Army MTU did several things to lower port pressures on the M14s. (1) They cut slits with wafer discs in Dremel tools length ways down the large diameter of the piston. (2) They are drilled extremely small holes in the end of the gas plug."
There are second-hand reports of receivers cracking from bolt impact, but these also at least hint or openly admit hot-rodding the loads with heavier bullets. ...from those who shot hundreds and even thousands of 190-grain bullets at 2400 or so FPS from the M14-type that you can get excessive wear and battering on the rear of the op rod and the bolt impact area in the receiver. Excessive port pressure loads move attempted extraction too early in the firing cycle, resulting in rim lift and occasional failures to extract (the empty gets withdrawn and then put back in the chamber). The bolt almost always got far back enough to cock the hammer.
All this being said, if one chooses not to watch out what one feeds either the M1A or M1 Garand, problems can occur. A reasonable option for both platforms is an adjustable gas plug that once adjusted to whatever non-spec ammo you want to use, will still function fine with the ammo that either were designed to run.
So, with those new to the platform look for ammo that states it's made as mil-spec for either platform.
The bottom line is it's your responsibility to get the right ammo for either rifle, and if you don't blame SA if something goes south since we all take risks every day.
My .02
Bonus - Some History
BTW - I may have one of my standard's rebuilt into a SEI Crazy Horse' M21A5 DMR, as per this TAL review.
Belt Fed
Hellcat
Different cartridge's too.
Ginkus
Alpha
Amen. Semper fi Leatherneck.M-14 in boot camp