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Thread: Ruger SR-556

  1. #331
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    Quote Originally Posted by Pilgrim View Post

    Upper seemed sound looks and parts wise... except that the rail unit is held on by ROLL PINS!!! I kid you not. A couple of .02 cent roll pins holding together a $1,600 carbine. I hate roll pins... I guess they work OK... but I can't stand them.
    Roll pins provide their own retention.
    Last edited by Tokarev; 07-11-09 at 23:55.

  2. #332
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    Quote Originally Posted by gotm4 View Post
    That's a hint.....meaning it's designers didn't really think nor test it. Just sayin'
    That is the impression I get as well. Earlier this year a certain member here said something about the Swiss not being in a shooting war for so long they don't even know what a 'combat' weapon should be.

    I handled a new Sig 556 Commando today that had the bolt handle horizontal to the bore axis for a change, instead of angled upwards so it will hit the optics, this is a good start. I mean, many of us have been training for the last couple of years to reach under the AK style rifles to cycle the action while keeping our sights on the target and firing hand on the pistol grip, then Sig angles the bolt upwards so we can't reach it. Also, the super duper Sig brand Dr. Optic style sight it was equipped with didn't come even close to co-witnessing with the irons... Que pasa?

  3. #333
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    Quote Originally Posted by Tokarev View Post
    Roll pins provide their own retention.
    Man I hope so... the roll pins on my M&P45 have a tendency to work their way out... which gives me pause. But the roll pins Ruger uses on the Mini-14... oh man... those babies are in there real good.

    Hey speaking of roll pins, the roll pin on the upper receiver, is retaining a bushing that the operating rod rides in... correct?

    Another question if I may, (as you are the only one I'm familiar with that actually has an SR-556) the firing pin, charging handle, and bolt assembly are standard interchangeable AR-15 type parts aren't they?

  4. #334
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    Quote Originally Posted by Pilgrim View Post
    That is the impression I get as well. Earlier this year a certain member here said something about the Swiss not being in a shooting war for so long they don't even know what a 'combat' weapon should be.

    I handled a new Sig 556 Commando today that had the bolt handle horizontal to the bore axis for a change, instead of angled upwards so it will hit the optics, this is a good start. I mean, many of us have been training for the last couple of years to reach under the AK style rifles to cycle the action while keeping our sights on the target and firing hand on the pistol grip, then Sig angles the bolt upwards so we can't reach it. Also, the super duper Sig brand Dr. Optic style sight it was equipped with didn't come even close to co-witnessing with the irons... Que pasa?
    Who the hell needs a combat rifle when you have moutains and b-trapped bunkers to keep you safe!? I sorta like the sig's but you all are right, the ergonomics of key functions are outa wack.
    "Calling an illegal alien an undocumented immigrant is like calling a drug dealer an unlicensed pharmacist"

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  5. #335
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    Quote Originally Posted by Pilgrim View Post

    Another question if I may, (as you are the only one I'm familiar with that actually has an SR-556) the firing pin, charging handle, and bolt assembly are standard interchangeable AR-15 type parts aren't they?
    I'm only speaking for one rifle. Mine's the only example I've seen and handled but, from various Internet threads, there are at least two different bolt carriers and three different bolts in use.

    Some carriers, like mine, have a "national match" configuration with more mass and no machined rails. These are rumored to be made for Ruger by Young Mfg. The other carrier is more of a standard pattern with stepped rails machined in.

    The bolts seem to fall into three types. One has gas rings, one doesn't--still has the flange--and one has the flange and rings removed entirely. Again, speaking for my sample only, a standard AR bolt will fit and headspace.

    Same goes for charging handle and firing pin.

  6. #336
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    Quote Originally Posted by gotm4 View Post
    Standard positions ALL ammo I tested worked. The Ruger will work 99% of the time if not used in odd shooting positions.
    Did your Ruger show a dislike for one position(s) over another? I'd like to try and replicate your malfunctions, if I can.

  7. #337
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    Quote Originally Posted by gotm4 View Post
    Yes.

    To reply to the others, I would take the Ruger over the SIG-Sauer 556. I know how to make the Ruger work. Can't say the same about the wannabe SIG 550/551/552 rifle from SIG named the 556.
    Shoot me a PM if it's too off topic but I'd sure like to hear your thoughts on the 556, Robb.

  8. #338
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    I understand that SIG bastardized the 556, but most of it was cosmetic. The functionality of the basic rifle stayed the same. The barrel is of good quality with a 1/7" twist and is Nitroferic treated. The rest of the details, sights, handguards etc. can be upgraded or changed. I too, would like to know we these rifles seemed to be damned so much.

  9. #339
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    Quote Originally Posted by Tokarev View Post
    Did your Ruger show a dislike for one position(s) over another? I'd like to try and replicate your malfunctions, if I can.
    Roll over prone and prone resting on the mag was where it had most of the problems.
    Chief Armorer for Elite Shooting Sports in Manassas VA
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  10. #340
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    Quote Originally Posted by The_Katar View Post
    If given the choice between those two and a Colt LE6920, which would you choose?
    Question not directed at me... but...

    I was able to hold a SR-556 and a Colt LE6920 side by side yesterday.

    I'd take the Colt.

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