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Thread: Middy won't feed steel case

  1. #51
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    Quote Originally Posted by sacmaster View Post
    Thanks for all of the constructive feedback from everyone. To those saying the gun isn't optimized to run the Tula stuff, no shit. It was cheap, so I decided to spend 10 bucks on a couple of boxes. Sue me. I live 10 minutes from PSA, so I buy decent ammo from them 90% of the time.

    Next time I shoot, I will swap out the buffers and see what happens, as well as do a short stroke test with both buffers. I'll post back the results. I've had this upper for over a year and didn't just put the rifle together last week, and I still have no complaints with it whatsoever. Ammo snob comments really add very little to the discussion about the technical capabilities of the weapon in its various configurations.


    My post was to the follow on comments from your OP since you said you learned your lesson right off the bat.


    Shooting quality ammunition is not being an "ammo snob". Its shooting the ammunition designed to work in mil spec AR's.


    Certain other people have the stupid belief that an AR should work just as well with 3rd rate ammunition as 5.56 pressure stuff.


    FWIW I do shoot steel case and have cases of Hornady steel case sitting on the shelf next to me. The 3rd rate ammo is an issue because of inconsistent function NOT simply because its steel case. I have shot a lot of the Hornady stuff including 55FMJ and 75BTHP. Ive not had an issue with it even in my SR15 which is particularly picky. I have shot a few MOA to slightly above MOA 10 shot groups with the BTHP. The drop out to 500 is quite a bit more than 5.56 stuff but it still cycles the gun.

  2. #52
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    Belmont, my last post was not pointed directly at you; rather to the tone the thread took in general, which wasn't my intent with the original post. FWIW I shoot a fair amount of the Hornady steel case and have never had a problem with it either.

  3. #53
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    Quote Originally Posted by Belmont31R View Post
    Man what is it lately?
    People's broke.

    Quote Originally Posted by sacmaster View Post
    a short stroke test
    You clear on the procedure?

  4. #54
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    You clear on the procedure?[/QUOTE]

    Think so. Load a good mag with one round, chamber it, and fire it. If the bolt locks back, it's fine. If the bolt closes forward on an empty chamber after ejecting the case, it's short stroking because the gas pressure didn't generate enough energy to move the bolt all the way to the rear. Am I missing anything?

  5. #55
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    I have BCMs, LMTs, and DD's that cycle steel case fine. H buffers and clean the chambers regularly. I buzz the chamber and clean it as necessary.
    Last edited by lugee; 11-15-11 at 00:20.

  6. #56
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    Quote Originally Posted by sacmaster View Post
    Am I missing anything?
    You have the important parts. Fire that round very loosely, "unrestrained" is the term in the mil spec, one handed if your range and musculature will allow it. If the face of the bolt doesn't lock back behind the bolt catch then repeat the test but this time push in on the bolt catch while you fire. Check to make sure that the catch doesn't bind on the carrier prior to this.

  7. #57
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    http://www.bravocompanyusa.com/BCM-1...urg-mid-14.htm


    Quote:
    "These 14.5" mid length gas barreled upper receiver groups have been specifically tuned to be a very soft and fast shooting set up. They are a joy to shoot, but please feed it good ammo. With good milspec pressured ammo we have been running H buffers. We do not recommend using lower powered ammo. If using less than milspec pressured ammo, it may be best to run a standard carbine buffer. "

    Thank you for posting that. I knew I had read somewhere, thinking the BCM website, that they suggested not using low powered ammo in a mid-length gas upper without expecting to do some tweaking.

    This thread re-emphasizes that whatever ammo you choose, make sure it is reliable in your particular weapon before you rely on it for serious purposes.
    Last edited by Doc Safari; 11-15-11 at 10:38.

  8. #58
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    Quote Originally Posted by Belmont31R View Post
    Man what is it lately?



    It says right on the damn BCM website to run quality ammunition through the gun. Tula is 3rd rate commie junk.



    If you want to run the cheapest junk ammo you can then don't buy guns that are not tuned right off that bat to run low pressure ammunition. Not everyone wants to run that shitty ammo, and don't want the extra stress on parts caused by running full pressure quality ammunition through our guns because ill informed people think their shit should run with the lowest quality Ruskie steel case to real 5.56 stuff.
    Spoken like a true KAC lover... jk

  9. #59
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    Quote Originally Posted by Dirtyboy333 View Post
    Spoken like a true KAC lover... jk


    Indeed. I want my guns tuned to run full pressure ammunition not the lowest pressure stuff out there.


    If someone wants to run that ammo then buy a gun with an out of spec gas port that will cycle that ammunition.


    Expecting a gun to shoot both equally well means the gun is going to be put under more stress and recoil harsher when using 5.56 pressure ammunition. That increases the chance for parts failure and reduces accuracy when shooting quickly as you're fighting excess muzzle rise.

  10. #60
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    Quote Originally Posted by Belmont31R View Post
    Indeed. I want my guns tuned to run full pressure ammunition not the lowest pressure stuff out there.


    If someone wants to run that ammo then buy a gun with an out of spec gas port that will cycle that ammunition.


    Expecting a gun to shoot both equally well means the gun is going to be put under more stress and recoil harsher when using 5.56 pressure ammunition. That increases the chance for parts failure and reduces accuracy when shooting quickly as you're fighting excess muzzle rise.
    I know i was just joking. Hell, i spent days trying to adjust my Sig 556's GP just so it would "smooth it out". I thought it seemed slightly harsher then a different 556 I have shot and i drilled new GP's on the flip side of the valve. It's tuned perfectly now. So, i know what your talking about.

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