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Thread: My 1st 1911

  1. #41
    Join Date
    29th August 2017
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    Is it possible that the rounds are catching on the slide stop or something?

    That indentation on the case mouth looks like it was made by something with a sharp corner, not the large radius curve of the barrel ramp.

    Also, the bullets do look to be seated too deep. It's possible that the cartridges started out with the correct OAL and the bullets were set back during feeding. There was a mention of LAX remanufactured ammo in a quick search I made.

    -

  2. #42
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    I have had cases that looked like that when I tried to load deformed bullets into them ...
    Hawkmoon
    On a good day, can hit the broad side of a barn ... from the inside

  3. #43
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    31st May 2019
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    Quote Originally Posted by Hawkmoon View Post
    ......can you measure the overall length of maybe three of them and post the dimensions?
    I measured some from the jambs & from the box, they all measured 1.252"-1.254" OAL.


  4. #44
    Join Date
    25th September 2011
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    1.252-1.254 "should" be okay. You have to use what OAL you get if you are not rolling your own ammo. Consistenty OALs in jams and unused ammo are good signs that the projectiles are not being setback during loads.

    For an idea of how the case should look on the breech, have a look at the thread "extractor contack with case" starting around post #13, https://forum.m1911.org/showthread.p...064#post955064

    Also look at #14. The case to breech relation in each of those post are acceptable. I attempt to get more of a fit like the one in #14. However, that extractor was fit by the master Jerry Keefer whose skills and tools are beyond my reach.

    After letting the old noggin cook the issue a bit longer, my bet is still on the overall tightness of the gun and that, perhaps, the extractor is currently too tight. Do expended cases in your slide sit at a cattywumpus angle rather than looking like those in the referenced posts? If so, my tight extractor supposition might have credence. However, you used the magical phrases "haven't quite made 500rds" and "continue to improve" that reinforce my thinking about a new and tight pistol that needs a bit more exercise. Oh, your mags are new too and have a bit of a break in period as springs "set" and the feed lips wear on the ammo.

    As the rounds are loaded, the barrel of the pistol rises from its full down position to its upper limit in the slide. If, as the barrel is rising, the rounds are stuck in the magazine, the lip of the case mouth might catch on the bottom of the barrel throat. That would result in the james and nicks that you are seeing.

    The headstamp, G.F.L, is Fiocchi brass and is worth keeping. Look at that nice primer strike!

    Did you shoot any FMJ on this last outing?

  5. #45
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    25th September 2011
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    Quote Originally Posted by lonestarjeff View Post
    With two more Check-mates & a Mec-Gar I headed back to the range this weekend. Still had some FTF's, but maybe a third of what failed the 1st trip out. I did not notice any significant brass damage on the FTF's that 1st trip, but I did this time. They all hung up the same way save one, the one oddball did a double feed. All the rest are pictured in a group here......



    They all hung up slightly nose up, jambed against the feed ramp, the cartridge rim not quite clear of the magazine lips. I had similar jambs with all 4 mags, all 230g ball ammo. I never had more than one FTF in a mag, for what that's worth.
    I am looking at this again. I do not see the divots on the projectile that I would expect if the round is catching on something in the pistol. The fifth round from the left looks short. During the last ammo madness I noticed brass damaged like that on some "commercial" ammo.

  6. #46
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    Quote Originally Posted by Pyrenean View Post
    I am looking at this again......The fifth round from the left looks short. During the last ammo madness I noticed brass damaged like that on some "commercial" ammo.
    I went back and measured all the jambs & found the one you cited above....it is a full mm shorter.

  7. #47
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    This is representative of all my ejected brass. They all have this dent in the side.....


  8. #48
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    21st September 2008
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    Quote Originally Posted by lonestarjeff View Post
    This is representative of all my ejected brass. They all have this dent in the side.....
    That's not entirely unexpected in a gun with a high, GI-profile ejection port.
    Too many people miss the silver lining because they're expecting gold.
    M. Setter

  9. #49
    Join Date
    25th September 2011
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    +1. I see that with rounds in my pistols that have GI profile ejection ports. Resizing would remove that dent.

  10. #50
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    31st May 2019
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    Quote Originally Posted by Pyrenean View Post
    .....have a look at the thread "extractor contack with case" starting around post #13, https://forum.m1911.org/showthread.p...064#post955064

    Also look at #14. The case to breech relation in each of those post are acceptable. I attempt to get more of a fit like the one in #14. However, that extractor was fit by the master Jerry Keefer whose skills and tools are beyond my reach.
    Wow, that string was quite a read. I was an engineer's draftsman in my youth(pencil & vellum days), so I love to see posts with technical drawings attached. Mr. Keefer's expertise is way above my skills too, but I can appreciate what he is describing & trying to accomplish. Thanks for the link.

    I will see if I can re-create an accurate case-to-breech pic using one of the spent brass cases.

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