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Chamber support in Glock 10mm (or any Glock) aftermarket barrels

Discussion in 'Handgun Discussion' started by pinne65, Dec 6, 2015.

  1. pinne65

    pinne65 Hillsboro, OR Active Member

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    I'm mostly running my G3 G20 with Lonewolf after market barrels. I got them because the better supported and tighter chambers were supposed to be lighter on the brass for reloading.

    The chambers are tighter for sure. Just rattling a cartridge around in unmounted barrel confirms that.

    I'm not so sure about the chamber support though. GlockOemLW4.6LW6.0.jpg
    GlockOemLW4.6LW6.0-2.jpg
    They look pretty darn close to OEM to me. (OEM to the left). Of course on the photo with the OEM being black it's hard to tell...

    And indeed, some times I have problems chambering my reloads in the aftermarker barrels. I'm assuming those were previous hotter loads with some bulging.

    Anyone with similar or different experience, from LW or other aftermarkets, Barsto, KKM.

    Cheers!
     
  2. v0lcom13sn0w

    v0lcom13sn0w Keizer, or Well-Known Member

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    i thought the chamber support issue was with early 40 s&w glocks. by gen 3 you had a pentagon proof mark for an updated chamber. if you had a dot in the middle of that pentagon then your barrel was made out of tougher metal also.
     
  3. Benchrest

    Benchrest The Desert Planet Well-Known Member

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    I've got a Gen 4, and factory case support vs. my LW is pretty similar. Certainly LW chamber is quite a bit tighter.

    If 1X brass is chambering, but not going fully into battery, you might need to de-bulge.

    .02
     
    v0lcom13sn0w likes this.
  4. Pandaz3

    Pandaz3 Cornelius, Oregon NRA Lifetime Member Platinum Supporter Gold Supporter Bronze Supporter

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    I bought a Lone Wolf Barrel for my G29 and the Warden's G17, I have never used my Lone Wolf Barrel but the Warden swears by hers and uses it all the time. I think Glock did okay with the 10MM barrels, the extra slop assures acceptance of most "Factory" ammunition and everything was engineered for the 10MM so there is no safety issue. (They learned a lesson from the 40 S&W troubles) I think the Glock 10 MMs, 20, 29, and 40 are the best Glocks made. I could be talked into buying a G20 or G40.

    I intend to use my Lone Wolf Barrel sometime, I do think it's better for me (that's why I got it) but I don't reload currently
     
  5. pinne65

    pinne65 Hillsboro, OR Active Member

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    So this is the norm for semi autos, KKM, Barsto and even other semi autos are about the same?
     
  6. Koda

    Koda Oregon Bronze Supporter Bronze Supporter 2016 Volunteer

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    here is the case support for a stock Colt Delta Elite...
    Selection_001b.jpg
     
  7. Benchrest

    Benchrest The Desert Planet Well-Known Member

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    Stock (.4390) VS. Lone Wolf (.4340). Case head support actually appears better in the sock barrel.

    LWvsSTOCK.jpg
     
    Cameron72 likes this.
  8. pinne65

    pinne65 Hillsboro, OR Active Member

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    Interesting - I don't really have much experience with anything but Glocks. I seem to remember some high performance ammo manufacturers recommending not using "unsupported" barrels like the Colt Delta Elite. And Koda's photo here does indeed make the barrel support look way less than on Glocks. But I was just browsing the Underwood site and they were posting velocities for their different rounds. Delta Elite 5" was one of the posted configurations - go figure. I'm not any wiser but hopefully still learning.
     
  9. Koda

    Koda Oregon Bronze Supporter Bronze Supporter 2016 Volunteer

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    This chamber support issue has always been a mystery to me. If you Google it, there are plenty of topics on the Glocks (stock barrels) causing bulging or other issues from lack of case support. I dont shoot mine a whole lot, but never had a problem with full pressure Buffalobore or Doubletapp ammo, yet Underwood Ammo says you cant shoot theirs in the Delta but any Glock is fine yet the prior companies are equally and slightly more power in some loads.
     
  10. pinne65

    pinne65 Hillsboro, OR Active Member

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    Oops - I missed that Underwood lists Delta velocities with an aftermarket barrel....
     
  11. FA9

    FA9 Hillsburrito, ORgun Well-Known Member

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    Here's a picture of my supported 10mm chamber. I compared it with a LW and stormlake barrel and this one is way better.

    IMG_4168.jpg


    IMG_4168.jpg
     
    Benchrest likes this.
  12. Koda

    Koda Oregon Bronze Supporter Bronze Supporter 2016 Volunteer

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    can you share who makes that barrel?
     
  13. Benchrest

    Benchrest The Desert Planet Well-Known Member

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    He can, but then he'd have to, well, you know.
     
    Koda likes this.
  14. Pandaz3

    Pandaz3 Cornelius, Oregon NRA Lifetime Member Platinum Supporter Gold Supporter Bronze Supporter

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    Underwood does make a 10 MM just for the Delta Elite (or other unsupported barrels I would guess) it is a 180 Grain Nosler JHP going out around 1240 FPS, which is less than their other 180 Grain rounds