190g .308 bullets from a M14?
- Thread starter carlchevalier
- Start date
As many people have said the M14's werent designed to fire anything much higher than 168 if i remember correctly . However i fired 180 grain sellier and bellot out my norinco m14 when i first bought it , i think all of 4 or 5 or so boxes on separate days and upon a recent cleaning i dont see any damage or impact from the op rod slamming around .
But do so at your own risk . I was merly impatient to shoot my m14.
But do so at your own risk . I was merly impatient to shoot my m14.
Anything over 170-175 grains tends to work the action too hard.
Simple solution.
Turn your gas system off and rack the bolt back by hand after every shot.
On the right hand side just in front of the ferrule that holds the hand guard to the stock and behind the gas lock there is a small screw with a slot. When the slot is up and down the system is on and your in semi-auto, when you turn it so the slot is parallel with the barrel your gas system is off and your in single shot. Then you can shoot as heavy a round as you want.
Simple solution.
Turn your gas system off and rack the bolt back by hand after every shot.
On the right hand side just in front of the ferrule that holds the hand guard to the stock and behind the gas lock there is a small screw with a slot. When the slot is up and down the system is on and your in semi-auto, when you turn it so the slot is parallel with the barrel your gas system is off and your in single shot. Then you can shoot as heavy a round as you want.
190 grain match bullets were actually designed for .300 Win Mag target rifles. The muzzle flash and blast would be even more astounding out of a non-standard barrel.
If there were any restrictions on the bullet weight for an M14 style rifle, the first place you'd see it is in the SA Inc. M1A owner's manual. There is no such thing.
If there were any restrictions on the bullet weight for an M14 style rifle, the first place you'd see it is in the SA Inc. M1A owner's manual. There is no such thing.
Actually you can buy a new piston for your gas system that has a notch in it length wise. The notch lets a small amount of gas escape so pressure doesn't get too high when your shooting bullets over 180 grains. I forget who sells it, Brownells possibly. M14doctor maybe.
Brownells sells them . I dont think anyone here has actually tested the accuracy of the system but its not expensive .
Mauser GDog
CGN frequent flyer
Does this piston still function as required with less than 180 grain ammo?
Depend with which ammo. Might work fine with hot 155gr and 168gr but not 100% with 145gr, you'll have to test it. Just remember you have an undergased system, malfunctions could appear only when it's dirty or cold.
I use the grooved piston for moose hunting with 180gr and then change back for smaller bullets. You probably know but it takes only 30 seconds to change your piston.
On page 4 and 5 they say to use only 7,62x51mm NATO ammo. I don't think there's NATO ammo over 168gr. It's well recognized you should not use heavier than 168-175gr with the original gas system. No magnum or superformance either.
Yes it exist. Schuster makes one gas plug for the M1 and one for the M14. Brownells can't export it so it will be harder to get here (searched but failed). One way I don't remember trying is write straight to Schuster mfg.
It don't matters but Schuster gas plug are not battle proven like Sadlak pistons. It's still made in USA and has lifetime warranty. 2 items have similar prices.
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I had picked up a Schuster M1A adjustable gas plug to use with a GI gas assembley but have yet to get out and try it.
I'll let you know how it goes.
Also got a Shuster plug for the Garand, but again, haven't got out to use it yet
I'll let you know how it goes.
Also got a Shuster plug for the Garand, but again, haven't got out to use it yet
Can you tell us where you got it?
From what I did read, it works fine. Just take the time to adjust it properly for your actual load.
M118LR uses a 175gr matchking.
It's been a while since i've messed with my M14, but I think I could have a use for that sadlak piston. Does it only fit a USGI gas system, or will it drop into the chinese one too?
springfield sa, inc, doesn't MENTION that THEIR RECIEVERS MAY BE OUT OF SPEC either, or their CRACKING BOLTS, OR A HOST OF OTHER PROBLEMS WE'VE SEEN SURFACE OVER THE YEARS- the under 175 grain rule is well known, as well as the 173 for the garand- m118lr lake city uses 175 grain smks- that's in the nato toe
that's the old spec- the newer one is a 175 smk at 2550 , using a 34 primer without the crimp- 43.8-44 grains of ww748- but that may have changed from the last time i looked- they were also arguing the fact that 175 grain smk has a slight HOLLOW POINT , and i don;t know whether that was cleard up- the load i use is called an m118 SLR- special long range- but i use 168's in it- the 175's are too expensive- and it's only good to 600 - the 175 is good t0 1000
I know, I believe the new 175 stuff is called M118LR now? I would like to get a hold of some of that as well to see how it compares to the old lake city that I have. Mine are all head stamped 72 and this old ammo shoots like a hot damn, very accurate. I'm saving my last 300 rounds for when I get another M40A1 clone built. Here's some pics.
