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Thread: Bullet Jump in 9mm/45cal revolvers

  1. #1
    Member cclaxton's Avatar
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    Bullet Jump in 9mm/45cal revolvers

    https://www.facebook.com/groups/2346...4405642580924/
    Crimps on most semi-auto rounds cannot handle the G-forces of lightweight revolvers.
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  2. #2


    According to Ruger this isn't a problem.

  3. #3
    Member Rich@CCC's Avatar
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    Yep, I have to apply extra crimp on my 9mm loads for my Pitt Bull and I'm not loading anywhere near max pressure.
    Last edited by Rich@CCC; 04-05-2017 at 10:35 AM.
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  4. #4
    Member Wheeler's Avatar
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    Quote Originally Posted by jh9 View Post


    According to Ruger this isn't a problem.
    According to Bill Rogers this isn't a problem either.
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  5. #5
    Site Supporter Tamara's Avatar
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    Smith & Wesson 325PD snubbies wouldn't run with pretty much any factory budget 230gr FMJ, to include Speer Lawman.

    Factory budget FMJ ammo has almost no crimp on it. That's why it does this in Bobergs.

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  6. #6
    Site Supporter Tamara's Avatar
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    Quote Originally Posted by Wheeler View Post
    According to Bill Rogers this isn't a problem either.
    What kind of ammo gets run in the school guns?

    I'm no Bill Rogers, but I've seen it with my own two eyes on a 9x19 Model 642 Airweight conversion. (Which is a bad idea anyway for frame erosion reasons.)
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  7. #7
    Member Wheeler's Avatar
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    Quote Originally Posted by Tamara View Post
    What kind of ammo gets run in the school guns?

    I'm no Bill Rogers, but I've seen it with my own two eyes on a 9x19 Model 642 Airweight conversion. (Which is a bad idea anyway for frame erosion reasons.)
    I'm not sure. I'm trying to find out.
    Men freely believe that which they desire.
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    I can't see the Facebook thing but I've shot a lot of 45acp in S&W 1917, 625 and a Blackhawk without any problems.


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  9. #9
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    Quote Originally Posted by serialsolver View Post
    I can't see the Facebook thing but I've shot a lot of 45acp in S&W 1917, 625 and a Blackhawk without any problems.


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    Those are all steel frame guns. Mass helps dampen the inertia. Mostly a problem in lighter weight guns.

  10. #10
    Site Supporter Tamara's Avatar
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    Quote Originally Posted by serialsolver View Post
    I can't see the Facebook thing but I've shot a lot of 45acp in S&W 1917, 625 and a Blackhawk without any problems.
    Me, too. And a lot of 10mm FMJ in 610s. And a lot of .40 FMJ in 646's. Those are all steel guns. (Well, the 646 has a titanium cylinder...)

    325PD has a titanium cylinder and an alloy frame and weighs under 22 ounces empty. It's a frickin' kinetic bullet puller.

    If you have access to a 296 or 396, note that it specifies a max of 200gr bullets right on the barrel. That's because you'll only get three or four shots of 246gr LRN before the remaining ones jump crimp and tie up the cylinder in those AirLite L-frame .44s.
    Last edited by Tamara; 04-06-2017 at 10:11 AM.
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