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SA Loaded, accuracy is driving me crazy... where to go from here...

This is a discussion on SA Loaded, accuracy is driving me crazy... where to go from here... within the Accuracy forums, part of the M14 M1A Forum category; Originally Posted by Capona Yeah, sounds like the handguard is too tight and should be relieved. I'm setting up now to take care of this. ...


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Old November 27th, 2016, 06:48 AM   #31
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Quote:
Originally Posted by Capona View Post
Yeah, sounds like the handguard is too tight and should be relieved.
I'm setting up now to take care of this.

All i have to do is remove stock and unclip hand guard?

going to run tape on HG for reference then sand paper on bench.

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Old November 27th, 2016, 06:50 AM   #32
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I wouldn't tinker with the gap between HG and stock until AFTER the issues of draw and contact of the ferrule and band are resolved.

If the handguard is actually being PUSHED down by the receiver position (NOT being PULLED down by the ferrule) onto the stock then removing material would just allow it to be pushed further down!

I suggest you do further reading about the details of receiver bedding and how it is usually done. Or perhaps examine a rifle that is already bedded correctly.

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Old November 27th, 2016, 07:04 AM   #33
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Shim the gas cylinder. I've never seen a rifle that didn't show an accuracy improvement after shimming (unless lockup was already good to start with). Opinions vary on the subject. If your gas cylinder and front band are binding in the front, that will negatively affect accuracy.

Make sure there's clearance around the operating rod guide.

Tony.

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Old November 27th, 2016, 11:07 AM   #34
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Try Sierra MK 168s with same load in place of the Hornady 150s. None of my rifles with shoot with that bullet. I take that back, my 30-40 Krag doesn't mind the Hornady too much.
Can't agree more.

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Old November 27th, 2016, 11:25 AM   #35
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I've had a loaded for about two months now. I've experienced similar results.

I sanded the ferrule and stock around the GC, and sanded the hand guard, the groups improved.

Then I realized the op rod guide was touching the stock. I sanded the stock so it clears, and did the paper test. I haven't fired it yet to see if it improved.

Also, once the stock and op rod guide were separated, the front band was able to move. So, basically, everything was bound up on one another.

I shimmed the front band and timed the lock to 5:30. Previously, mine locked up similar to yours in the video.

I wanted to test each step one at time, but the shims arrived in the mail as I was sanding the stock for the op rod guide, I couldn't resist.

Range day tomorrow. Today, Christmas tree, and trains!!!

Thank you Tony for the videos!!!

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Old November 27th, 2016, 03:04 PM   #36
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I'm going to go back to the load. My Loaded shoots Sierra bullets the best. 155 and 168 SMKs, 150gr FMJ and 165 HPBT SGKs. Only bullets that I have shot and are close are Nosler. Hornady never shot 1 inch groups for me, not saying they won't.

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Old November 30th, 2016, 09:46 AM   #37
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Shot yesterday, these 3 off bag @ 100yrds, using iron sights
My H 155 Amax, My 168 BTHP, and factory 168's

then mounted Bassett w/ " inexpensive" 4x16, well I think I need new optic for the M1A, good groups then bad....

Will search forum for scope reviews...those 8" targets are a tad small for my old eyes..

again thanks for the suggestions.
Red...
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Old November 30th, 2016, 06:08 PM   #38
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I'm glad your groups are improving.

What scope was it that you had bad groups with?

Does it have adjustable Parallax? Did you check if it is correct?

Parallax error can easily result in bad groups.

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Old November 30th, 2016, 07:19 PM   #39
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yes! Glad you seem to have a handle on it...
mine has been parked in it's case for some time now but intend to get her out again soon. When parked was liking 155gr Hornady Amax's...


Last edited by JEFFJP_N_JJ; November 30th, 2016 at 07:21 PM. Reason: typo!
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Old December 2nd, 2016, 02:28 AM   #40
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Originally Posted by WaM14gunner View Post
Sling...on the bench? New one on me. I try to make sure there is never a sling on any rifle when on the bench, just gets in the way.
I was going to say that too until I saw your comment. Check out the YouTube for vids of M14s in combat in Iraq and Afghanistan. YOu will never see anyone using a sling, not even when qualifying.

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Old December 3rd, 2016, 06:57 AM   #41
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KurtC say:
Quote:
The front band is pulled forward against the gas lock, away from the barrel shoulder.
Very interesting. That is a nuance of assembly I missed or neglected somehow, although I have wondered about the effect of squeezing the fore and aft ends of the gas cylinder between the barrel shoulder and the lock.

I will remove my shim for my next range session, but I have a question. What is the purpose of the shims, if not to remove any gaps at the ends of the gas cylinder?

Thanks

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Old December 3rd, 2016, 07:45 AM   #42
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Originally Posted by shooter86314 View Post
KurtC say:

Very interesting. That is a nuance of assembly I missed or neglected somehow, although I have wondered about the effect of squeezing the fore and aft ends of the gas cylinder between the barrel shoulder and the lock.

I will remove my shim for my next range session, but I have a question. What is the purpose of the shims, if not to remove any gaps at the ends of the gas cylinder?

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Their purpose is only to remove play in the front band, if there is play.

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Old December 8th, 2016, 07:21 PM   #43
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Quote:
Originally Posted by tonyben View Post
Shim the gas cylinder. I've never seen a rifle that didn't show an accuracy improvement after shimming (unless lockup was already good to start with). Opinions vary on the subject. If your gas cylinder and front band are binding in the front, that will negatively affect accuracy.

Make sure there's clearance around the operating rod guide.

Tony.
Glad to hear you say that. I couldn't make sense out of wanting the hand guard to clear the stock but it's ok to have a big hunk of metal loose on the front end of the barrel. I shimmed mine so that it took the amount of force displayed in Tony's video to tighten the lock ring.

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Old December 8th, 2016, 07:37 PM   #44
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Quote:
Originally Posted by Red Dog Leader View Post
Shot yesterday, these 3 off bag @ 100yrds, using iron sights
My H 155 Amax, My 168 BTHP, and factory 168's

then mounted Bassett w/ " inexpensive" 4x16, well I think I need new optic for the M1A, good groups then bad....

Will search forum for scope reviews...those 8" targets are a tad small for my old eyes..

again thanks for the suggestions.
Red...
Thanks, Red Dog Leader! I have some hornady 155's but just ordered me some 168's to try...
Jeff

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Old January 10th, 2017, 04:48 PM   #45
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maybe try different powders and loads? Ladder test?

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