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SOCOM CQB accuracy?

This is a discussion on SOCOM CQB accuracy? within the Modern M14 forums, part of the M14 M1A Forum category; Hi. Iím new to this forum and new to my SOCOM CQB. Iím trying to find out what this thing likes to eat and what ...


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Old February 9th, 2017, 04:05 PM   #1
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SOCOM CQB accuracy?

Hi. Iím new to this forum and new to my SOCOM CQB. Iím trying to find out what this thing likes to eat and what level of accuracy to expect. I would really like to handload for this rifle but I have tried several brands of factory ammo. Rifle is to be mated to a lighted-reticle scope using an airborne mount as a dedicated hog gun (off the ATV and out of a stand).
Iíve tried Mil-Surp NATO ammo, PMC Bronze, Winchester Hog Special, Herterís SP, and even Federal Match. No Bueno nada. For handloads Iíve used Hornady 155 A-Max, Hornady 165 BTSP Interlock, Sierra 165 Game King, Sierra 165 Pro Hunter, and Sierra 180 RN. For powder Iíve used H322, IMR 4895, IMR 3031, RL15, IMR 4350, and IMR 4064. All in all, 35 different loads. Iím using Lake City 82 brass. The brass has been FL sized in a small-base RCBS die. Primer pockets have been swaged. Brass has been trimmed to 2.005. Powder charges have been adjusted for use in thicker military surplus brass. I only use CCI large rifle primers. Each different bullet has been loaded to COL according to manufacturerís spec.
Iíve been shooting through a PACT chronograph and there have been no signs of spikes or dips in velocity within a load group. For load development purposes, Iíve put a Leupold 6.5-20 Long Range scope on so Iím shooting at 100 yards at 20x. All in all, my groups look like patterns. The best Iíve been able to do is about 1 ĹĒ with the A-Max but couldnít duplicate it and thatís not a hunting bullet anyway. Just using it because I had so many of them and this is my only .308. Today I was able to get about 1ĺď with the 180 RN. It was max load and the very last load of the day. Have to load more and try them.
Does anyone have any suggestions or comments? At this point, I need all the help I can get. Iím not exactly new at handloading (40+ years) but this is the hardest I have ever worked to get a rifle to shoot. In the past, I have given up way before this point and gotten rid of the rifle. Just something about this rifle that I like and want to keep it. Thanks in advance for any help, comments, and/or suggestions.

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Old February 9th, 2017, 06:16 PM   #2
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Does your rifle still have the barrel mounted rail attached? If you are shooting under 2 inches at 100 yards you are doing great. This isn't a bolt gun, it's really designed to shoot a good 4-5 inch pattern at 100 yards.

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Old February 9th, 2017, 06:19 PM   #3
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2" is about what that rifle is going to get you. From what you've written it looks like you are there.

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Old February 9th, 2017, 06:28 PM   #4
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I'd say your doing good. My first M1A was a SOCOM and I used / trained with it as a colse quarters battle rifle. I traded it off for a loaded model and decided to use a light weight AR for close work. I removed the scout rail that clamps directly to the barrel and some other mods, but still she still produced 2-3 groups off the bench. The SOCOM is great at what she was designed to do.

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Old February 9th, 2017, 06:35 PM   #5
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Welcome.

Seems like most SOCOM owners report bullets in the 150's work best for their loads.

Try the search bar. There's more than one thread on this subject.

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Old February 9th, 2017, 06:39 PM   #6
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Welcome to the forum. In my opinion you are right around the best accuracy potential you can realistically expect from the 16-inch SOCOM platform. Unless glass/steel bedded and otherwise tricked out with NM components the M1A is not a 1 MOA rifle. It's an honest 2-2.5 MOA gun out of the box with ball ammo. IMO it's unrealistic for you to expect sub-MOA groups without high end match upgrades. You are about at the limit of your tools.

Sounds like you're doing your homework with load development. I'm going through the same process. My most accurate load so far is a 168gr SMK with 42.3gr IMR 4061, CCI LR primer, Mil-spec brass. It is comparable in accuracy to factory Federal 168gr GMM. My rifle is a walnut stocked SAI loaded model. I regularly get 1.5-2MOA at 100 yards with the iron sights using the Fed GMM 168gr ammo as the gold standard. My rifle is currently away getting a steel epoxy bedding job. It should be a sub MOA capable rifle once I get it back.

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Old February 9th, 2017, 08:51 PM   #7
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Personally... and this may sound stupid considering what you bought... but try a different stock. My Socom16 came with the USGI fiberglass stock, which I didn't care for. I dropped it in USGI Walnut and started having accuracy issues... as soon as I swapped it back into fiberglass, the groups tightened back up. I'm saying try another stock as an experiment, just to rule it out. I also pulled the short rail off the barrel, shimmed the gas lock.

~2" @ 100yds with glass is pretty reasonable, you can probably do better if you really work the handloads, but if you are looking for MOA accuracy... you bought the wrong rifle.

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Old February 9th, 2017, 09:18 PM   #8
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If your hunting deer use the Amax they work really good.

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Old February 9th, 2017, 09:20 PM   #9
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Just because it's a SOCOM doesn't mean you can't make it a bit more accurate by paying attention to details and doing the same prep the longer guns get. If you're not using the forward mount, remove it and replace the handguard with one that's been trimmed to keep from touching the stock. There should be a .020"-.025" clearance between the inside of the front band and end of the stock. You can shim the gas cylinder so the gas lock has a slight clamping force on the barrel threads. Confirm the op-rod is aligned with the gas piston. I don't know anything about the ArcAngel CQB stock, but check to see if the gas cylinder and op-rod guide are making contact inside (they shouldn't).

These changes typically add up to results you can see at the range... no reason you can't try the same strategies with a CQB.

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Old February 10th, 2017, 04:49 AM   #10
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I don't mean to be an ass but , you purchased a rifle called the C Q B , not the thousand yard one shot stop. Sound to me like the rifle is performing well as designed. My SOCOM , out of the box ,consistently hits a 6x6 steel at 100 yard with iron sights 150gr fmj and 40.4 gr of Varget.
I understand the accuracy quest and tinkering with our toys, I'm quilty as well but more people need to understanding what your purchasing and what it's limitations are. Again I know I'm coming across as turd and I mean no disrespect. It s your money , your rifle , not mine and you have your reason I'm sure. Sorry for the rant. Have a good day.


I'm sure I probably deserve bashing I'm about to get lol

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Old February 10th, 2017, 05:07 AM   #11
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Quote:
Originally Posted by Dozermonkey View Post


I'm sure I probably deserve bashing I'm about to get lol
You are a Bad Boy!

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Old February 10th, 2017, 05:11 AM   #12
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Thanks for all your comments. And, no, I'm not offended by any of them. All I am looking for is to take feral hogs cleanly out to 200 yards, not a one hole paper puncher (I have a Winchester 52D for that). And yes, I still have the forward scope mount. Is there any weigh-in on getting the trigger worked on. No matter what the use is for a rifle, I find I shoot better with a smooth light trigger (and I guess I'm not alone).

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Old February 10th, 2017, 06:30 AM   #13
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Senor Chisme, welcome to the forum. The guys here know what they are talking about and love to talk about their favorite rifles. Check out Tony Ben's videos on the care and feeding of your rifle. That's a good start. There are several on here who know how to do a good trigger job-not just any gunsmith knows how to do an M1 or M14 trigger-you absolutely do not want to go below about a 4# pull or you could run into a "bump-fire" problem. As has been pointed out before, this is not a bolt gun. Your in a whole new world here and boy is it fun. Finally, remember that this firearm is limited by gas port pressure and not chamber pressure when you are reloading or using commercial ammo. Also, be sure that your primers are seated below flush to help prevent slam fires. Work with your rifle and you'll come to love her just like the rest of us here do.

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Old February 10th, 2017, 07:11 AM   #14
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Originally Posted by boomerpusher View Post
Finally, remember that this firearm is limited by gas port pressure and not chamber pressure when you are reloading or using commercial ammo.
I meant to mention that... OP, you made me wince when you said you got good accuracy with "Today I was able to get about 1ĺď with the 180 RN. It was max load" Just be careful with your handloads... like Boomer said, the M1a platform is very sensitive to gas port pressure. There is gas-gun (service rifle) load data available in a number of places (Hornady's load book, for example,) and I would recommend using that as a guideline for your handloads. I'm not saying you can't go past them, but you'll have to set your rifle up for the big boomers if you want it to last.

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Old February 10th, 2017, 07:29 AM   #15
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Quote:
Originally Posted by Senor Chisme View Post
Thanks for all your comments. And, no, I'm not offended by any of them. All I am looking for is to take feral hogs cleanly out to 200 yards, not a one hole paper puncher (I have a Winchester 52D for that). And yes, I still have the forward scope mount. Is there any weigh-in on getting the trigger worked on. No matter what the use is for a rifle, I find I shoot better with a smooth light trigger (and I guess I'm not alone).

You'd certainly benefit from a smoother trigger. It doesn't have to be a lighter pull, per se, but smoothness is every bit as important as poundage to me. Unless you really know what you're doing, I would have a competent person work on the trigger.

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