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A Storm Lake barrel for my Glock 29 SF

Discussion in 'The 10 Ring' started by Big Sam, May 10, 2012.


  1. Big Sam

    Big Sam
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    Just got into 10mm Glock's 4 months ago with a G29 SF and a G20 SF. Last week I got in a Storm Lake 4 1/2" Stainless barrel for the G29 SF. No fitting was required. Over about 150 rounds it's feeds 100% with Hornaday XLT and Precision Delta 165gr bullets.

    Today I got to chrono a couple loads and see how the Storm Lake barrel compares to factory. First is a Hornday XLT 180gr bullet in front of 10.7gr of Blue Dot and a Federal mag primer. Here are the velocities

    G29 SF with factory barrel 1127 fps
    G29 SF with 4 1/2" SL barrel 1242 fps
    G20 SF with factory barrel 1193 fps

    While everything was out I tested my carry load. It's the Hornaday 155gr XLT factory load

    G29 SF with factory barrel 1274 fps
    G29 SF with SL 4 1/2" barrel 1336 fps
    G20 SF with factory barrel 1338 fps

    Needless to say, the Storm Lake barrel gives a major jump in velocity. I'll be doing some serious accuracy testing over the next month. I have also ordered some Beartooth 200gr bullets for use in the SL barrel. Hoping to beat 1200 fps with it. It's a good start so far. Impressive gun.

    *all velocities are 5 shot averages
     

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  2. SK2344

    SK2344
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    Sounds like you are very pleased with these Glocks but my question is, do you think this will give you a big advantage if you ever had to shoot someone in self defense at about 10 feet? No sarcasm meant, just wondering why!
     

  3. Big Sam

    Big Sam
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    No offense taken. I should have explained more anyway. My efforts with the Storm Lake barrel are with the intent of extending its versatility . With a 180gr XLT at 1240 fps and a 200gr hardcast bullet at a similar velocity, I can extend the guns use into woods protection and hunting backup purposes. With the shorter OEM barrel it's a good carry platform and cartridge. The Beartooth WFN bullet should be in next month and I'll see what they can do.
     
  4. alwaysshootin

    alwaysshootin
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    Hey BS,:supergrin: make sure you give underwood ammo a good looking over. They have some very good 10MM ammo offerings!

    http://www.underwoodammo.com/

    By the way those loads with the 180 grain Hornady's will do just fine for most everything in the woods.:cool:
     
  5. bac1023

    bac1023
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    Very cool :cool:

    Thanks for the info.
     
  6. chemboy

    chemboy
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    Thanks for those numbers. The SL barrel sure makes a difference in velocities.
    :cool:
     
  7. pkersey

    pkersey
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    Any idea why the Storm Lake barrel gives a 50 ft/s velocity increase over the longer stock G20 barrel? Is it just a statistical deviation?
     
  8. 67November

    67November
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    Thanks for posting. Great timing as well. Friend and I were discussing barrel length and velocities over lunch today.

    I just received (literally one hour ago) two Storm Lake barrels for my 20SF: 6" extended and stock length. I already have the extended SL in my 29SF and have been very pleased with its performance.

    YMMV
     
  9. Big Sam

    Big Sam
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    Good question. I don't know why since the Storm Lake barrel has only been chrono'd once and even then only with two loads. I Chrono'd 5 other loads that day (45 Colt & 9mm) and the chrono seemed fine. Extreme spreads were all fairly low and the brass came out fine as each set was inspected separately. I'll retest in a week or two and post the results.
     
  10. baabwvu

    baabwvu
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    I'm thinking hard about a G29. I have shot and reloaded .40 for a while and would love to get into 10mm. Are your chrono results from a ported 4.5 in. barrel, or just a solid extended barrel? Am I right in assuming that you will lose a little velocity with the ported one since gases escape sooner? my first post here-- thanks for the info!
     
  11. Big Sam

    Big Sam
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    You are correct. It is a solid barrel. I've never had one of the ported barrels so someone else will have to speak to the velocity loss. It should not be great in any case though.
     
  12. Big Sam

    Big Sam
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    A picture is worth a thousand words. In numerous times at the range the Storm Lake barrel has kept functioning up to 100%. I carried it today (normally carry my G30) and all went well.
     
  13. oldman11

    oldman11
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    G29 come with a 3.8" barrel. You are putting a 4.5" barrel in it. That will give you more velocity, yes. It's the barrel length that is giving you the extra velocity, not the brand.
     
  14. dm1906

    dm1906
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    Retired SO

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    ANY day you didn't need it was a good day.
     
  15. cookand

    cookand
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    War Eagle!!

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    Are you familiar with the saying, "Needless to say"?

    Thanks OP for the post. I have a 6" SL for my 20 that I haven't taken out since I got it. My next purchase will be a 29SF and I have been thinking about going with the extended SL. Can't imagine it really causing any carry issues.
     
  16. Cwlongshot

    Cwlongshot
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    I also have a G20 and a 5.5 and a 6" barrel. I noticed a impressive velocity increase too.. One of my barrels is a ported Lone Wolf and the longer is a KKM precision.

    CW
     
  17. Breadman03

    Breadman03
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    Any update on the Storm Lake accuracy? I just picked up a 29SF and am looking for an aftermarket barrel for chamber support, velocity, and (#1) accuracy.

    I'd like to punch paper beyond 50 yards, so high power is just for grins. Accuracy will be good. I want people to wonder why some numbskull is using a compact pistol at ranges most are using rifles for.
     
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