Why I Shoot .40 Through My Unmodified 10mm GLOCK

Discussion in 'General Glocking' started by SJ 40, Jun 26, 2015.

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  1. Jun 26, 2015 #1
    SJ 40

    SJ 40 Deplorable,Clinger

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    Let me preface this by saying,different strokes for different folks,seems he never heard of conversion barrels.

    Why I Shoot .40 Through My Unmodified 10mm GLOCK
    By Jeremy S on June 26, 2015

    10mm Auto came first. The FBI chose a watered-down loading — a 180 grain bullet at 975 fps instead of more like 1,300 fps — and a large-frame S&W pistol through which to shoot it. By the time the contract went through, Tom Campbell, S&W employee, had realized that the powder capacity of the 10mm’s 25.2 mm-long case simply wasn’t necessary to achieve this same velocity, and the .40 S&W with its 21.6 mm-long case was born. For all intents and purposes, .40 S&W is really “10mm Short & Weak.” Brief history complete, let’s skip to the part where I’ve chosen to shoot it regularly through factory-stock 10mm GLOCKs. . .

    http://www.thetruthaboutguns.com/2015/06/jeremy-s/40-in-a-10mm-glock/
     
    SJ 40, Jun 26, 2015
    SJ 40, Jun 26, 2015
  3. Jun 26, 2015 #2
    KennyFSU

    KennyFSU

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    So I shouldn't try it in my Delta Elite? Lol.
     
    KennyFSU, Jun 26, 2015
    KennyFSU, Jun 26, 2015

  5. Jun 26, 2015 #3
    SJ 40

    SJ 40 Deplorable,Clinger

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    This is just me but I won't be trying it in any of my 10's. Be wary out there people. SJ 40
     
    SJ 40, Jun 26, 2015
    SJ 40, Jun 26, 2015
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  6. Jun 26, 2015 #4
    KennyFSU

    KennyFSU

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    Don't worry I was just being facetious, lol. Found some local Armscor 10mm for 27.99/bx, good deal?
     
    KennyFSU, Jun 26, 2015
    KennyFSU, Jun 26, 2015
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  7. Jun 26, 2015 #5
    March817

    March817

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    Too cheap to buy a conversion barrel?
     
    March817, Jun 26, 2015
    March817, Jun 26, 2015
  8. Jun 26, 2015 #6
    ChuteTheMall

    ChuteTheMall Wallbuilder and Weapon Bearer

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    [​IMG]

    :pjmn:
     
    ChuteTheMall, Jun 26, 2015
    ChuteTheMall, Jun 26, 2015
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  9. Jun 26, 2015 #7
    SJ 40

    SJ 40 Deplorable,Clinger

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    I could read that in your reply,ammo other than long rifle is slowly becoming available again,a good thing. SJ 40
     
    SJ 40, Jun 26, 2015
    SJ 40, Jun 26, 2015
  10. Jun 26, 2015 #8
    mc1911

    mc1911

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    My stock 20SF will not shoot 40. The LWD barrel will shoot it. To save 10mm brass I shoot 40 loaded to 10mm length for plinking. This is in my gun anyone else is doing it at their own risk.
     
    mc1911, Jun 26, 2015
    mc1911, Jun 26, 2015
  11. Jun 26, 2015 #9
    Ammunition Attrition

    Ammunition Attrition

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    For you apocalyptic loaders who do this stuff, here's the standard required safety warning:
    .40 SW max. pressure SAAMI= 35000psi.
    10mm max. pressure SAAMI=37500psi.
    So, IF you load the .40 case to a 10mm COAL you've got the same combustible volume--I got that. But the critical fact the .40 brass can't take as much heat says, "Don't push it or, better, don't do this at all even if we're under the upcoming Ricktatorship. Get Starline :supergrin:10mm brass.
     
    Ammunition Attrition, Jun 26, 2015
    Ammunition Attrition, Jun 26, 2015
  12. Jun 26, 2015 #10
    eb07

    eb07 Sharkin'

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    Why I don't :

    Because if I wanted to shoot 40 I would have bought one.
     
    eb07, Jun 26, 2015
    eb07, Jun 26, 2015
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  13. Jun 26, 2015 #11
    CDW4ME

    CDW4ME Enigma

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    I prefer 10mm ammo that is not nuclear, but not 40 either.
    Corbon 150 JHP or my duplicate handload is a great match for my 29SF

    Glock 29 SF     (3.75'' barrel)
    Ascending order of calculated recoil (PF) not KE.
    Corbon 150 JHP @ 1,222 fps / 497# KE / PF 183
    Handload: 150 Nosler @ 1,239 fps / 511# KE / PF 186
    Hornady 175 gr. Critical Duty: 1,077 fps / 451# KE / PF 188
    Hornady 155 XTP: 1,278 fps / 562# KE / PF 198
     
    CDW4ME, Jun 26, 2015
    CDW4ME, Jun 26, 2015
  14. Jun 26, 2015 #12
    gooffeyguy

    gooffeyguy In the STL

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    So with this mindset it would be safe to shoot

    all those loads can be duplicated in a .40 when using Longshot powder
     
    gooffeyguy, Jun 26, 2015
    gooffeyguy, Jun 26, 2015