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cross section of a smiley

Discussion in '10mm Reloading Forum' started by Yondering, Feb 21, 2012.

  1. WeeWilly

    WeeWilly

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    Great stuff, thanks for taking the time to post this, changes my viewpoint on what "reusable" means when it comes to brass.
     
  2. _The_Shadow

    _The_Shadow Ret. Fireman

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    This needs to be a "STICKY" because it is too important to be burried in the threads...
     

  3. nickE10mm

    nickE10mm F.S.F.O.S.

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    I SECOND THE MOTION :banana:
     
  4. blastfact

    blastfact

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    Great info for the uninformed.

    Yes this should be a sticky with flashing stars around it!
     
  5. nickE10mm

    nickE10mm F.S.F.O.S.

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    I just sent the request to a mod to have it sticky'ed. We'll see.
     
  6. nickE10mm

    nickE10mm F.S.F.O.S.

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    Success!
     
  7. oreguner

    oreguner

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    I bought a new Glock20 and a box of 180gr Armscor fmj ammo and after firing 10 rds 6 have the smile and nothing on 4. I also bought some Sig 180gr fmj and shot 10 round with no smile. Is this just a case of BAD brass from Armscor? I have seen this in 40S&W but never paid much attention to it because I have so much of it.
    Thanks
    Terry
     
  8. _The_Shadow

    _The_Shadow Ret. Fireman

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    Armscor brass isn't as good as others but it is more because of the powder they are using. They are using too fast a powder for the weight bullet that they are trying to shove too fast! That expands the casing too fast and exceeds the brass metallurgy in use. The last Armscor 180 pull down I did showed Tight Group 6.4 grains.
    What spring rate are you running?
     
  9. oreguner

    oreguner

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    What ever came in the 20 gen 4, it is stock and new with 20 rounds thru it.
     
  10. _The_Shadow

    _The_Shadow Ret. Fireman

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    Sig's ammo is much better in my opinion and probably why you didn't see the SMILE issues. You could try other ammo or a different recoil spring setup to see if it helps some.
    I run non captive Wolff recoil rod and 22 lbs springs in my G-20SF.