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tahqua View Drop Down
Optics Jedi Knight
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Posts: 5018 		  Quote tahqua Quote  Post ReplyReply Direct Link To This Post Topic: 10mm FBI study
    Posted: March/23/2008 at 10:46
Someone over at Glock Talk was able to get a confidential copy of an FBI report on the 10mm auto
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RONK View Drop Down
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Posts: 2950 		  Quote RONK Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 11:21
     
        Laugh%20Above
 
   But, but, I just got a 9mm.....
 
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Posts: 2607 		  Quote martin3175 Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 11:35
FBI is putting our tax dollars to "work"
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Posts: 5018 		  Quote tahqua Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 11:37
Originally posted by RONK

     
        Laugh%20Above
 
   But, but, I just got a 9mm.....
 


Smart move
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Posts: 9423 		  Quote cheaptrick Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 15:25
That is hilarious.
 
What's with the .40?? A Kaboom?
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tahqua View Drop Down
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Posts: 5018 		  Quote tahqua Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 16:47
Originally posted by cheaptrick

That is hilarious.
 
What's with the .40?? A Kaboom?


I wondered about that but I think it is relative to the 10mm damage. I like the .45 trajectory and the flip off.
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Posts: 2950 		  Quote RONK Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 17:04
Originally posted by cheaptrick

That is hilarious.
 
What's with the .40?? A Kaboom?
 
Yep!
 Apparently the feed ramp is cut slightly different in the Glock .40 cal. models than it is in the other models and calibers, leaving the case head slightly unsupported, and historically that is the reason the .40s have a much greater incidence of kabooms, statistically speaking.
 
 edited for grammer


Edited by RONK - March/23/2008 at 17:06
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Posts: 9423 		  Quote cheaptrick Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 17:11
I have read that the .40 cal Glocks seem to have more issues than the rest of the line, but I didn't know why. Thanks for that, Ron.
 
 
 
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tahqua View Drop Down
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Posts: 5018 		  Quote tahqua Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 17:22
All Glocks have unsupported areas that are common to most autoloading pistols. I've read the same about the .40 Glocks. My G20 has eaten up plenty of Cor-Bon and Double Tap 10mm without a problem. The Glock .40's are the most popular law enforcement pistols out there so I'm not sure what to think
One thing I've seen is that a lot of kaboom reports are not substantiated. Also, there are a ton of people reloading with lead bullets. This is a no-no with all polygonal rifled barrels including my HK's. The .40 Short and Weak is a strong case and can handle any of the pressures the 10mm does.
I'm a Glock Talk regular and I just don't see how this got going.


Edited by tahqua - March/23/2008 at 17:23
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Posts: 2950 		  Quote RONK Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 17:25
 I'm certainly no expert, but the unsupported case head is most often touted as the biggest factor, it seems.  I think .40 factory ammo runs at higher pressures than the other cartridges, leaving less of a fudge factor.
 Factory ammo seldom causes problems though, according to some.  Many of the kabooms are occurring with reloads, and a good percentage of them are with lead, non-jacketed bullets.  Evidently the polygonal Glock rifling is susceptible to heavy cumulative lead fouling, which raises pressures over the top.  The general concensus is to stick with factory jacketed bullet loads for relative safety assurance.
 
 Edited to note: Posted this before reading Doug's latest reply.
 Edited again to correct Doug's name
 
 Cheaptrick: Wasn't there an animation of "How A Glock Works" in that Arfcom gif. thread you posted the other day?
 That explains it better than I can.
 


Edited by RONK - March/23/2008 at 18:02
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tahqua View Drop Down
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Posts: 5018 		  Quote tahqua Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 17:33
You can reload jacketed bullets with no problems also. I use Sierra and XTP in all my Glocks.
Here is a search from GT http://glocktalk.com/forums/search.php?searchid=682659
You can see there is a ton of hits and like I said, there is a ton of BS%20Flag
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RONK View Drop Down
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Posts: 2950 		  Quote RONK Quote  Post ReplyReply Direct Link To This Post Posted: March/23/2008 at 17:33
Originally posted by tahqua

All Glocks have unsupported areas that are common to most autoloading pistols. I've read the same about the .40 Glocks. My G20 has eaten up plenty of Cor-Bon and Double Tap 10mm without a problem. The Glock .40's are the most popular law enforcement pistols out there so I'm not sure what to think
One thing I've seen is that a lot of kaboom reports are not substantiated. Also, there are a ton of people reloading with lead bullets. This is a no-no with all polygonal rifled barrels including my HK's. The .40 Short and Weak is a strong case and can handle any of the pressures the 10mm does.
I'm a Glock Talk regular and I just don't see how this got going.
 
  Ted,  Doug, when you compare your different Glocks, is there any way to tell if there is a dimensional difference in the size of the exposed case head area, by looking at it from below or something?


Edited by RONK - March/23/2008 at 18:03
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