Gas Lock Timing Question

With all the discussion of gas lock timing i am wondering if I can squeeze a little more accuracy out of my JCG rifle.

My gas lock stops at "7 o'clock". I'm backing it down to 6 and tightening the gas cylinder/plug TIGHT. The gas cylinder is brought away from the front handguard.

I don't have a stockpile of gas locks and don't really feel like investing in a bunch for the few rifles I actually own. The rifle shoots pretty well if I do my part. How necessary is it to time the gas lock at 5:30?

Am I chasing my shadow?

I'd like to hear some anecdotal evidence as to this working.

That mod by itself and with surplus ammo I seriously dont think you will see any difference
That mod plus everything else you can do to a Garand you will see a differnce in accuracy
I really think the best thing you can do to increase a Garand accuracy is put it in a new well fitting commercial stock and use handloads or Match ammo.
Gus Fisher told me the main thing it does is take the torque/stress off the barrel threads when you have a lock that properly times as it puts the lock against the angled seat on the barrel

Orlando, if the "mod" really works, there should be some proof of it working by just doing this mod shouldn't there?

One thing you dont want to do is use a lock that stops hand tight at 4:30 and torque it on down.
I did this and accuracy went to crap, as soon as I used a lock that stopped at 5:30 or more accuracy came back

Quote:

---

Originally Posted by timshufflin

Orlando, if the "mod" really works, there should be some proof of it working by just doing this mod shouldn't there?

---

Again all it does it take stress of the barrel threads and keeps gas cylinder tight longer.
Here is a quote from Gus on the subject


"For NM accuracy, we don’t want a GC going loose during a match as the front sight will be in a different place each time and cause loss of accuracy when the GC is not tight on the barrel.

I do not know who first came up with choosing locks so they would tighten down with some torque to the 6 o’clock position. I think that information has been lost to history. With this method, the lock actually tightens against the angled front surface of the barrel that is called the “Gas Cylinder Seat. By the lock tightening against the barrel, that helps keep the GC from coming loose. I am not a mechanical engineer, so I can’t explain it properly in those terms, but tightening the lock against that shoulder actually takes stress off the barrel threads and key ways and is why the GC’s stay tighter for longer periods with this method.

Personally, I fit ALL M1 Garand GC locks this way as it is good for ALL Garands. I was informed even standard Infantry Armorers did this in the 50’s, after the method was developed and if they had enough locks to do it. Of course, it was the standard method used by NM Armorers. However, it took too much time for manufacturers or the Arsenals to do it with mass quantities of Garands and that’s why they never made it a mandatory maintenance requirement

The rifle currently sits in a nice, tight HRA USGI stock.

With the lock timing past 6 and not resting on the "gas cylinder seat" it's just going to loosen the peened gas cylinder splines? To preserve the peening I should find another lock?

Or dont woory about it ,when and if gas cylinder loosens you can peen them again

Unless your cranking down on it, like in Orlando's scenario, I don't see how it's going to make too much difference at 100 or 200 yards. I don't give two shits about lock timing anymore.

When you shoot at the top 5% of the game...I could see how all little nuances make a difference.

The rest of the 95%,...if you worry about gaslock timing as it pertains to accuracy, you aren't as good a shooter as you might think. :)

Man size targets....all this "squeeze accuracy out of a rifle",...squeezes the fun out. :(