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Accurizing a SAI Scout Squad ...

This is a discussion on Accurizing a SAI Scout Squad ... within the Gunsmithing forums, part of the M14 M1A Forum category; I recently purchased a new SAI Scout Squad as a 'Project Gun' since it was on sale for $1200 out the door at my local ...


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Old December 26th, 2016, 08:26 PM   #1
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Accurizing a SAI Scout Squad ...

I recently purchased a new SAI Scout Squad as a 'Project Gun' since it was on sale for $1200 out the door at my local shop.

First, I have several Loaded models and another Scout Squad that I use strictly as my Coyote and Deer rifle, and don't consider it to be anything other than that. I have it dialed in the way I like it, and it shoots 2 1/2" groups all day long with my ammo.

So ... from my extensive reading of 'Accuracy Improvements' for the Scout Squad ... am I on the right track with the following upgrades?

1) NM Gas Cylinder

2) NM Piston

3) NM OpRod Spring Guide

4) Trigger Job

Please Note .... I will be removing the forward mounting rail and adding a Solid Handguard with a receiver mounted Scope Rail and Scope.


Is this pretty much all I would need in order to turn this rifle into a 1" - 1 1/2" shooter?

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Old December 26th, 2016, 08:35 PM   #2
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Haven't done much to mine other than remove the Scout mount, install a unitized gas system and get the handguard trimmed to get it away from the stock.

Shimmed the gas system first and got a bit better, haven't been to the range with the unitized gas system yet.

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Old December 26th, 2016, 08:48 PM   #3
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Shoot the rifle first. You may not need to do anything to it. Scout rifles tend to shoot sub 2 moa with FGMM ammunition. The shorter barrel has less whip.

A unitized gas cylinder doesn't do much unless you have a sturdy stock with proper draw pressure.

The NM spring guide helps the rifle cycle more smoothly, which tends to make the shooter more accurate.

Every rifle can benefit from a proper trigger job. It is the next most important thing, after match ammunition.

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Old December 26th, 2016, 09:10 PM   #4
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Shoot the rifle first. You may not need to do anything to it. Scout rifles tend to shoot sub 2 moa with FGMM ammunition. The shorter barrel has less whip.

A unitized gas cylinder doesn't do much unless you have a sturdy stock with proper draw pressure.

The NM spring guide helps the rifle cycle more smoothly, which tends to make the shooter more accurate.

Every rifle can benefit from a proper trigger job. It is the next most important thing, after match ammunition.

Not to get Off Topic, but isn't the formula for FGMM something like 43gr. of IMR 4064 and 168gr. SMK?

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Old December 26th, 2016, 09:13 PM   #5
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Not to get Off Topic, but isn't the formula for FGMM something like 43gr. of IMR 4064 and 168gr. SMK?
Yes it is. If you handload, you can duplicate it. It is also $170 shipped for a 200 round case at the CMP store.

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Old December 26th, 2016, 09:29 PM   #6
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Yes it is. If you handload, you can duplicate it. It is also $170 shipped for a 200 round case at the CMP store.

Thanks for the tip. However, all I saw when I looked earlier was the Federal OTM 168 for M1A at $170. The FGMM is $196.

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Old December 27th, 2016, 05:49 AM   #7
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I'm currently trying to improve the accuracy of a new SA Scout Squad myself. Mine has the Walnut stock. I did the NM mod of the front ferrule, I had an area where the stock was coming in contact with the Op rod guide, I relieved that and accuracy improved somewhat. I stoned the rear hammer hooks and got my trigger down enough to eliminate the creep. No doubles so far. I used Tubbs Final Finish fire lapping kit. I've put in the Tubbs spring kit and a Sadlak NM guide. I relieved the hand guards. I have yet to shim the the gas cylinder, parts are on the way. Also ordered is a Schuester adjustable gas plug (I opted for the SOCOM length). I intend to get the SEI GLFS and Vortex Flash hider. I will probably need to bed the stock in order to get adequate draw pressure. Before I shot it the last time, I had put some aluminum tape shims under the front of the receiver rails to increase the draw, it helped, but was not enough. The last time I shot my Scout, I had not yet relieved the hand guards nor installed the NM spring guide. It was shooting a cluster of shots of about 1 1/4 to 1 1/2 in. with fliers opening up the groups to about 2 1/2 in. for 10 rounds. My goal is to get it to shoot about 1 1/2 in. If the remaining tweaks will get it under 2 in. without bedding the stock I'll be tempted to call it good enough. I intend to keep the Scout scope mount for now as I really like the Burris 2-7 Scout Scope.

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Old December 27th, 2016, 06:40 AM   #8
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A unitized gas cylinder may help, or it may not. In most cases, it will. My M25 in a JAE shoots extremely well without a unitized gas cylinder, but my gas lock timing is right where I like it, and that's without any shims. (opinions vary)

You want to have at least some draw pressure on the front end. That is probably the most critical aspect of your rifle's accuracy.

You also want to make sure there's no contact in the stock forearm between your gas cylinder body, operating rod and operating rod guide. This is mostly applicable to wood stocks.

Also clear the hand guard at the receiver face and along the horizontal surfaces where it meets the top of the stock forearm.

Open up the stock ferrule to give the gas cylinder more room to move and then you can get a clear picture of how much draw pressure you have. If there's not much, you can shim the front of the receiver to tilt the barrel up in relation to the stock forearm which should give you more draw pressure. (opinions vary)

Also make sure your trigger group has good lockup.

Check to make sure your operating rod guide is tight. If it's loose, knurl the barrel or glue it into alignment. (opinions vary)

Those are the cheapest and most effective accuracy mods you can do yourself.

NM spring guides smooth the action, but don't really give you an accuracy edge. Gas pistons may or may not give you an accuracy benefit. It's hit and miss. (opinions vary)

My saying on NM triggers: A good trigger will most likely make you shoot better, but it won't make you a better shooter.

NM triggers are very nice, and in my opinion, should be one of the last modifications you ever do to your rifle. It doesn't make the rifle any more accurate than it already is. What it does is it reduces the amount of shooter error that is transmitted through the rifle during the course of fire.

An un-tuned trigger forces you to develop proper trigger discipline in order to shoot better. An un-tuned trigger forces you a better shooter if you want tighter groups. Once you develop the skills to shoot well with a standard trigger, then moving to an NM trigger would be the next step.

Once you move to an NM trigger, it may reveal some errors in your shooting technique that were not evident with a standard trigger, like holding the rifle tight in your shoulder and follow-through. If you don't have the rifle tight and if you don't have good follow-through, it's easy to shoot a double.

I highly recommend Shooting Sight's new NM trigger and speed hammer, when you're ready.

Tony.

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Old December 27th, 2016, 07:58 AM   #9
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Quote:
Originally Posted by nortac View Post
I'm currently trying to improve the accuracy of a new SA Scout Squad myself. I used Tubbs Final Finish fire lapping kit.
Quote:
Originally Posted by KYMountainMan View Post
I recently purchased a new SAI Scout Squad as a 'Project Gun'
I'm in the middle of doing some of the same things you both are. All I've done at the moment is lap the bore with Tubb's kit, and I've been fortunate enough to get my shots under 2" at 100 yards. A Sadlak spring guide is on the way, and today I'll be:

- relieving the front ferrule for the GC
- removing a tiny bit of wood from underneath op rod guide
- eliminating HG-to-stock contact points

Here's the thread on my progress so far:My incremental improvements - scout squad

tonyben: I know you hear it a lot, but thanks for all the exceptionally well-done videos; they've been a tremendous help. Semper Fi brother; growl / bark...

-WRM

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Old December 27th, 2016, 03:59 PM   #10
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Scout Squad Accuracy

I will be following this thread. I have a synthetic Scout and am curious to see what works best for you. I ditched the Scout Mount and Ugly Flash Hider first.

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Old December 27th, 2016, 04:23 PM   #11
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Originally Posted by KYMountainMan View Post
Thanks for the tip. However, all I saw when I looked earlier was the Federal OTM 168 for M1A at $170. The FGMM is $196.
Sorry, my bad. For the record, the only real difference between the two is the match primers and the fact that they can't mention the bullet maker on the box.

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