close

Privacy guaranteed - Your email is not shared with anyone.

streaks inside barrel

Discussion in 'General Glocking' started by glim89, Jan 14, 2013.


  1. glim89

    glim89
    Expand Collapse

    Joined:
    Jan 7, 2013
    6
    0
    Just noticed some grey streaks inside the barrel of my new Glock 19 Gen 4. They are at the muzzle end and look like they go a few cm into the barrel. Can't see if they extend all the way to the chamber end. They also come out of the barrel past the crown onto the angled bit. See attached photo.



    I've only fired 90 rounds of FMJ and I've tried cleaning it with brush and solvent but the grey streaks are still there.


    Is this normal? Should I be worried?

    image.jpeg
     

    Wanna kill these ads? We can help!
  2. Bello

    Bello
    Expand Collapse
    America/Italia

    Joined:
    Sep 24, 2008
    2,341
    44
    Location:
    East Coast
    Normal just scrub it out! Use chore boy wrapped around your cleaning brush
     

  3. voyager4520

    voyager4520
    Expand Collapse
    -----

    Joined:
    Apr 25, 2009
    8,589
    0
    Location:
    SE Colorado
    Some of it is stubborn carbon fouling, but it's mostly just discoloration of the finish.

    Get a phosphor bronze bore brush and cleaning rod, and turn the rod clockwise as you slowly move the brush through the bore, of course while the bore and brush are soaked in good bore solvent. After a few good passes, use the nylon brush and rod that came with your pistol and scrub the bore, then pass solvent-soaked patches through the bore and repeat. You'll see a lot of black stuff on the patches, that's mostly phosphor bronze residue that rubbed off of the brush bristles onto the surface of the bore.

    I personally use a Dewey "No Harm" phosphor bronze bore brush with a Dewey brass bore rod. The brush and rod have absolutely no steel in them, the brush has a brass fitting and center wire with phosphor bronze bristles.

    Don't try to fit a phosphor bronze brush into the cleaning rod that came with the pistol, they use different threading and you'll end up ruining the cleaning rod.
     
    #3 voyager4520, Jan 14, 2013
    Last edited: Jan 14, 2013
  4. OrGlocker

    OrGlocker
    Expand Collapse

    Joined:
    Mar 8, 2009
    311
    0
    Location:
    Salem, Oregon
    completely normal there my friend, nothing to worry about.
     
  5. Bill Lumberg

    Bill Lumberg
    Expand Collapse
    BTF Inventor

    Joined:
    Jun 14, 2002
    6,845
    9
    Its fouling. I thought it was normal and unavoidable. Over time the streaks will keep extending as your round count builds It's not normally harmful but it's easy to remove. JB polish followed by JB paste will remove that quicly, leaving a mirror clean bore, all the way to the chamber, in about 3 minutes. Or you can use a lot of elbow grease.
     
  6. OneAverageWhiteGuy

    OneAverageWhiteGuy
    Expand Collapse

    Joined:
    Dec 21, 2012
    22
    0
    Location:
    California
    Maybe need to clean it better? I've got 300+ rounds through mine and it's still got the mirror finish. Can't imagine it fouling up much after only 90 rounds.
     
  7. SJ 40

    SJ 40
    Expand Collapse

    Joined:
    Jan 17, 2011
    12,693
    2,072
    Location:
    Vermont
    I would suggest reading this posters methods,they will get your Glock or any gun clean.
    While I use JB I have found Flitz or Semi Chrome milder and clean as well or better then than JB bore cleaner.
    http://glocktalk.com/forums/blog.php?b=581 SJ 40
     
  8. Cybercowboy

    Cybercowboy
    Expand Collapse
    Support the 2nd

    Joined:
    Dec 15, 2012
    3,412
    1
    Location:
    SW Missouri
    I just hose it down with Ballistol, wait 5 minutes, and pass a Hoppes bore snake through my Glocks. Comes out squeaky clean every time.
     
  9. glim89

    glim89
    Expand Collapse

    Joined:
    Jan 7, 2013
    6
    0
    Thanks for the tips!

    Might get some of that JB stuff and try cleaning it again. Will using a brass brush instead of the nylon one damage the barrel?


    Posted using Outdoor Hub Campfire
     
  10. allegro

    allegro
    Expand Collapse

    Joined:
    May 30, 2011
    667
    34
    Location:
    Memphis Tennessee, well just North
    Bore snake really made my life easier. Pick you one up, use it correctly and all will be good and easy.
     
  11. JBP55

    JBP55
    Expand Collapse

    Joined:
    Mar 4, 2007
    9,542
    210
    Location:
    Louisiana
    I have never used the cheap nylon brush that comes with the pistol. Buy a dozen brass bore brushes and you will be good to go for a while. No wonder you have fouling.
     
  12. Bill Lumberg

    Bill Lumberg
    Expand Collapse
    BTF Inventor

    Joined:
    Jun 14, 2002
    6,845
    9
    Nylon is all you need unless you're using solvents that degrade the nylon. Bore snakes dust, but don't clean. That said, properly used brass won't necessarily hurt anything. I was raised on Hoppes #9, and still love it. But with modern chemicals and a regular nylon brush, it only takes a minute to clean the barrel.
     
    #12 Bill Lumberg, Jan 15, 2013
    Last edited: Jan 15, 2013
Loading...
Similar Threads Forum Date
Silver streaks along rifling in G21 barrel? General Glocking Nov 6, 2015
Barrel "ring" inside rifle barrel? General Firearms Forum Feb 1, 2015
Inside Glock barrel wear? General Glocking Sep 20, 2014
Glock 19 New barrel - Pictures Inside Gun Parts & Accessories Sep 13, 2014
Mark inside barrel Black Rifle Forum Sep 7, 2013
Duty Gear at CopsPlus