This topic contains 4 replies, has 4 voices, and was last updated by  Rattlesnake Charlie 4 months, 2 weeks ago.

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  • #69227
     Glenn 
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    My neighbor Charlie came over today to load a pile of ammo for his new S&W 40.  We loaded up 10 rounds and tried them in the gun, and ended up with 2 misfires with Win SP primers.  So I switched to tulammo primers and had 4 misfires out of 10.

    The misfires had a very light firing pin strikes on the primer.

    So I was thinking about oil or crud on the firing pin.  I tore it down and hosed the slide out with brake cleaner.  I spent a lot of time on the firing pin channel, then blew it out with compressed air.

    I put it back together and tried 10 more rounds with win primers, and it ran great with no misfires.

  • #69228
     Jniedbalski 
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    That’s always good when you can fix it just by cleaning. Better than buying parts

  • #69229
     Harter 
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    I learned what could have been a very expensive lesson about clean first then adjust . Had a 1917 Colt that wouldn’t reliably cycle . Mostly it came up short of the locking bolt . Fortunately I tore it down before I started fixing what I thought needed to be fixed . I basically just let it swim overnight in CLP . The amount of grunge , filth , and dirt was unreal . On the other hand it had not been stripped in my lifetime .

  • #69230
     Jniedbalski 
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    I have seen old marlin auto  22s’ that where so dirty I can’t beleave that they ever shot

  • #69234
     Rattlesnake Charlie 
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    Very timely Glen. My Springfield XD .45 is starting to misfire with very light firing pin strikes. I’ll check this out closer.

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