More accuracy from an M14 with gas off
- Thread starter Holleyman
- Start date
That wold make sense to me. Stopping the moving part should improve thing.
My only concern for doing that on mine is, mine is a "go" with .762 and I'm not sure that I would do that with the higher pressure of the .308. Something might snap...
My only concern for doing that on mine is, mine is a "go" with .762 and I'm not sure that I would do that with the higher pressure of the .308. Something might snap...
Bruiseleee
CGN Regular
- Location
- Too paranoid to say
If the gas shutoff valve shuts the hole to the gas system, what's there to snap?
I did remember reading that shutting the gas valve makes the spent casing hard to extract manually. I've never done it but would like to know the answer as well. Perhaps someone should PM Hungry for the answer.
I did remember reading that shutting the gas valve makes the spent casing hard to extract manually. I've never done it but would like to know the answer as well. Perhaps someone should PM Hungry for the answer.
Northman999
CGN Ultra frequent flyer
- Location
- Southern Yukon
Should not be a problem at all.
I haven't tried it but it should not be a problem turning it off. Katana, remember the gun is gas operated and not recoil operated like a handgun. The spring is not absorbing any backwards pressure from the cartridge firing but is there to cycle the action that is started from the gas. The bolt doesn't start moving right away like it does in say a semi auto rim fire. The bolt PULLS the cartridge out, it doesn't get pushed by it.
That being said, there could be more resistance opening the bolt after firing with the gas off. I would think more so with the steel cased lacquered ammo that might not spring back in size as much as a brass case would especially after it cools for a second or two before you extract it manually.
It would be fun to try at the range. Try 20 rounds both ways, switching back and forth every 5 rounds.
Fudd
That being said, there could be more resistance opening the bolt after firing with the gas off. I would think more so with the steel cased lacquered ammo that might not spring back in size as much as a brass case would especially after it cools for a second or two before you extract it manually.
It would be fun to try at the range. Try 20 rounds both ways, switching back and forth every 5 rounds.
Fudd
I tried turning the gas system off and firing some groups today.
I used IVI, LC M, and my own handloads. I fired 5 rounds of each with the gas on and 5 off.
The ones fired with the gas system off are a shotgun pattern. The groups with the system off were between 1.25'' with my handloads and 2.0'' with IVI.
The closest grouping I had with the system off was over 4'' They were spread all over, no stringing.
YMMV but for me turning the gas system off makes the gun a straight pull shotgun.
I used IVI, LC M, and my own handloads. I fired 5 rounds of each with the gas on and 5 off.
The ones fired with the gas system off are a shotgun pattern. The groups with the system off were between 1.25'' with my handloads and 2.0'' with IVI.
The closest grouping I had with the system off was over 4'' They were spread all over, no stringing.
YMMV but for me turning the gas system off makes the gun a straight pull shotgun.
The bolt absorbs all of the force produced by propellant ignition. This is the reason why there are lugs on the bolt.
The spring only absorbs force from the gas piston via the op rod.
