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Author Topic: ST-1 vs. Fail Zero  (Read 10804 times)

ksuguy

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Re: ST-1 vs. Fail Zero
« Reply #25 on: June 11, 2010, 11:23:46 pm »
Range trip has been moved to Sunday.  Looks like more waiting...
Kansas

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    Canthros

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    Re: ST-1 vs. Fail Zero
    « Reply #26 on: June 12, 2010, 12:42:37 am »
    Tease.
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    Re: ST-1 vs. Fail Zero
    « Reply #27 on: June 13, 2010, 08:54:17 am »
    This is unbearable.
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    ksuguy

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    Re: ST-1 vs. Fail Zero
    « Reply #28 on: June 13, 2010, 04:55:58 pm »
    Well it looks like the Slipstream didn't cure it.  Still had the same problem.  Gun fires,  case is ejected, next round is chambered, but the bolt doesn't go fully into battery.   I put the grease on there and followed it up with some extra oil on all the sliding parts and hand cycled it a bunch, but no joy.    Maybe I'll try lubing up the fire control components as well.

    The range day wasn't a total bust however.   I took out the field grade Garands I bought in April.   They were both pretty solid shooters.  I was getting some very nice groups.   I also decided that I'll be removing the synthetic stock I put on one of them.  It just doesn't have the heat protection that the wood does.   After two clips the thing was so hot it was burning my left hand.   Part of that was probably due to it being black and out in the sun, but the wood stock on the other one was much more comfortable to shoot, both as far as temperature and balance.   

    I also did my good deed for the day.  We were at the church camp that our local Appleseed group uses for events.  The last time I was there in April, the owner mentioned that he loved the M1 since he used one during the early days of his service.  He was a paratrooper back in the early 1960's.  We gave him a call today and he came down where we were shooting and I let him fire off a clip.    He still knows how to fire it, and shot a pretty nice group from the standing position.   Now he's all excited about ordering one from the CMP for himself.   

    Kansas

    GeorgeHill

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    Re: ST-1 vs. Fail Zero
    « Reply #29 on: June 13, 2010, 05:04:39 pm »
    Quote
    Still had the same problem.  Gun fires,  case is ejected, next round is chambered, but the bolt doesn't go fully into battery.   

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    ksuguy

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    Re: ST-1 vs. Fail Zero
    « Reply #30 on: June 13, 2010, 06:43:53 pm »
    I've tried multiple springs.  This thing is just cursed or something.
    Kansas

    GeorgeHill

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    Re: ST-1 vs. Fail Zero
    « Reply #31 on: June 13, 2010, 08:01:33 pm »
    Really?
     :hmm
    Man, I'm not sure what to say.  I'd have to take a good hard look at it.  Could be a couple things including a gas port that wasn't drilled out or an out of spec chamber.   
    Trade uppers.  See if a different upper runs on your lower.  Maybe your mag is too low and the round has to dance to get into the chamber.  If the other upper runs.  You know it's the upper.  So then try a different BCG.  If it's not that, then you know it's the gas tube, chamber, or something there.
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    Mutant Musket

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    Re: ST-1 vs. Fail Zero
    « Reply #32 on: June 13, 2010, 08:05:40 pm »
     ???  :-[  :-\  :scrutiny  :o  ???

    Wow. How can a blow-back be THAT troublesome? I figured killing the friction would END the problem without preamble.

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    ksuguy

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    Re: ST-1 vs. Fail Zero
    « Reply #33 on: June 13, 2010, 09:18:10 pm »
    Really?
     :hmm
    Man, I'm not sure what to say.  I'd have to take a good hard look at it.  Could be a couple things including a gas port that wasn't drilled out or an out of spec chamber.   
    Trade uppers.  See if a different upper runs on your lower.  Maybe your mag is too low and the round has to dance to get into the chamber.  If the other upper runs.  You know it's the upper.  So then try a different BCG.  If it's not that, then you know it's the gas tube, chamber, or something there.

    This is a .22 conversion kit on a dedicated .22LR upper.  I don't think it is the gas system.  After a little playing around with it and some close examination, I think I see where it is getting hung up.   This is a picture of a Ciener .22 kit.  Mine looks similar, but it doesn't have the fake chamber deal on the front since I have a dedicated .22 barrel.   

    When the cartridge is fired, the part behind the blue line goes backward.   Then when it comes forward again, the part with the red line is getting hung up on that lip.   If you pull the charging handle back and let it go, there is enough force to over come it, but maybe not if you just fire a round or push the bolt back through the side of the ejection port and let it go.   

    I think my next tactic is polishing that up a bit and also hitting that area real good with some slipstream.  I didn't get much on that part before. 

    Kansas

    GeorgeHill

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    Re: ST-1 vs. Fail Zero
    « Reply #34 on: June 13, 2010, 09:22:37 pm »
    Oh man... I forgot that you were talkign about a 22 kit.    :doh
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    Gundoc

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    Re: ST-1 vs. Fail Zero
    « Reply #35 on: June 13, 2010, 09:37:11 pm »
    Oh man... I forgot that you were talkign about a 22 kit.    :doh

    They can be very troublesome.

    Outbreak

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    Re: ST-1 vs. Fail Zero
    « Reply #36 on: June 13, 2010, 11:34:30 pm »
    Never had an ounce of trouble with my CMMG kit, before or after the ST-1 treatment. It's pretty much a copy of the Ceiner kit.
    TexasOutbreak

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    Re: ST-1 vs. Fail Zero
    « Reply #37 on: June 14, 2010, 03:39:35 pm »
    CMMG has had good luck with theirs. Other makers...I've heard about a lot of problems.

    sohmdaddy

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    Re: ST-1 vs. Fail Zero
    « Reply #38 on: August 13, 2010, 07:35:08 am »
    I had never even hear of fail zero....

    And you probably won't ever hear from them again.

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