Metal shavings in bore

Discussion in 'AR-15 Discussion' started by nosaj, Mar 10, 2013.

  1. nosaj

    nosaj New Member

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    Went to clean a new Carbon 15 for the first time before shooting and :
    1. The bore is sooo tight. I could barely squeeze a patch down it...and from the muzzle end only. Would not go through chamber/breech.
    2. The patches that did go through had metal shavings on them. Everything looks perfect except some "shadows" on the end near the chamber

    This is my first gun that has ever had a new chamber as well as first ar.
    Any recommendations? Call manufacturer? Shoot away?
     
  2. Gatoragn

    Gatoragn Active Member

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    On all guns new to me, I drag a bore snack through the barrel, then I visually inspect, then I "choot 'em".
     

  3. drvsafe

    drvsafe New Member

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    Sounds like what I saw when I was cleaning. My AR for the 1st time. As to the patches? Well try pulling them through instead of pushing them through. I have one of those Otis cleaning kits that come with the flexible cleaning rod. I feed it through the muzzle end attach the patch at the chamber end and pull it through out the muzzle end.
    I might also suggest the purchase of a boresnake. I use it for the light work on the barrel. a bore brush, chamber brush and patches go through after running the snake through about 3-5 times. Makes it less likely that I will mar the interior of the barrel trying to get a cleaning rod or anything rigid.
     
  4. jigs-n-fixture

    jigs-n-fixture Well-Known Member Lifetime Supporter

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    If your LGS has a bore scope I'd have them take a look. I've never had shavings in a barrel. Their presence indicates to me that the manufacturers quality control program is nonexistent.

    The barrel could be fine, it could also have a chamber/throat that has only been rough reemed.
     
  5. Dennis845

    Dennis845 New Member

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    I have that problem too.

    I'm using the standard cheap aluminium cleaning rod, and it's some of the aluminum flaking off the push cleaning rod. I'm thinking about getting a bore snake myself.
     
  6. drvsafe

    drvsafe New Member

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    Clarify. What was the color of the shavings?
     
  7. nosaj

    nosaj New Member

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    Shavings are bright shiny metal quite possibly from the cleaning rod.
     
    Last edited: Mar 10, 2013
  8. drvsafe

    drvsafe New Member

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    Brass, chrome?
     
  9. nosaj

    nosaj New Member

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    Chrome. Would it be possible for the chrome lining to flake off?
     
  10. nosaj

    nosaj New Member

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    Or if it is just a rough edge on the bore lining will it wear in with use? Or just mess with accuracy from the beginning
     
  11. nosaj

    nosaj New Member

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    My biggest concern right now is whether or not i have a warranty issue
     
  12. drvsafe

    drvsafe New Member

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    I am going to defer to the more knowledgeable here. My first thought was perhaps it's a matter of the locking lugs just getting slammed and the rough edges are coming off. but I know there are far more knowledgeable ppl here with more experience than I.
     
  13. CGS

    CGS New Member

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    Chrome lined barrels are not really sought after for their accuracy. Sure they are combat accurate enough but I doubt you will ever find a bench rest shooter with a chrome lined barrel. The reason for the chrome lining is to reduce the likelihood of rust within the chamber and bore thus improving reliability.

    Could it be chrome from the barrel flaking off? Yes, maybe.

    Could it be metal shavings/burs left over from the manufacturing process? Possibly.

    Could it be pieces of your cleaning rod abrading off? yes (assuming your cleaning rod is a polished aluminum).

    Could it be "lapping" from the bolt and barrel extension?

    So many possibilities. My suggestion is take it to a gunsmith with a bore scope who can inspect the bore. You should inspect your cleaning rod thoroughly and perhaps use a different cleaning rod to see if this still happens or if the shavings are a different color.

    Also inspect the bolt closely and see if there is any unusual wear on the bolt.

    Pics might be able to help us identify what you're looking at.

    What kind of ammo are you shooting?

    Are you able to remove ALL the shavings when cleaning and if so have you shot the rifle again and did the shavings come back?
     
  14. nosaj

    nosaj New Member

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    Thanks. There are tiny scrapes on the alum cleaning rod and im thinking since the bore is so tight, the xtra flex caused it to scrape on the rifling.
    This was discovered before shooting any rounds through it so it cant be ammo or bolt wear.
    Shot it sunday and it was fine. I am not going to clean it till i pick up a bore snake and not use the rod to push patches through anymore
     
  15. Sniper03

    Sniper03 Supporting Member Supporter

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    nosaj

    Unless I am missing something here! One should not be cleaning the rifle form the Muzzle end to start with. You can damage the rifling's an the accuracy of the rifle! Clean "Only" from the Chamber end. If you are cleaning from the muzzle end the rifling's are probably cutting some of the Bright Aluminum off the cleaning rod. And BOO! on the bore snake idea! Their purpose is for quick cleaning. And if you ever get one or part of one stuck in a bore you will have a new appreciation for a cleaning rod! I am not telling you they do not have a purpose but no substitute for good cleaning an good quality coated cleaning rod like Dewey or other good rod. *In 22 Caliber "Only"! With a brass patch holder and a good brass cleaning brush. Also the patch size is "very important" when cleaning the AR. If the patch is oversize it will also cause problems going into or traveling down the barrel. Which could possibly be your main problem here? Also if your are looking down the barrel from the bore end toward the Chamber end. The shadow you are seeing is the Free Travel, Lead and Throat area of the chamber. Will it chamber a round and extract a round with no problem? If it does it is one of the issues mentioned above. But anything other than what I have explained better get a hold on Bushmaster. ;)

    03
     
  16. nosaj

    nosaj New Member

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    Thanks sniper. Yes it was a .22 size patch but would not push through the chamber without excessive force. Thats why i went throught the muzzle. It had never been shot so i wasnt worried about dragging any fouling or debris through it. Just givin it the initial cleaning to remove any oil/grease/dirt.
    I have never used a boresnake and did wonder about it getting caught or snagged. Also I thought the extra surface area made up for not running patches through it. Glad i didn't buy one yet.
    I will be switching over to pull style patch holders instead of the cheap plastic push through style
     
  17. drvsafe

    drvsafe New Member

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    A boresnake is too long for it to get stuck and not have something still sticking out to pull it out with.
    Also I am a fan of pulling a patch through as opposed to pushing. I feed the rod through the muzzle end until it comes out the chamber, add the patch and pull it out the muzzle end. Then again I use an Otis cleaning kit with the flexible cleaning rod.
     
  18. Ruger52

    Ruger52 New Member

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    nosaj, I have some cotton .22 caliber cleaning patches that I cannot get down, the chamber of my .223AR or any .22 rifle for that matter. I just take sizzers and cut about 3/16 off them, and they work fine. You can cut a half a dozen at a time, so it is easy. I also bought some other patches that are the same size square, but are thinner and work fine in my AR. It seems some of the patches are thicker and don't fit well. And with that sometimes you will get flexing of the cleaning rod, if you have a tight fit, so it doesn't go straight down the bore, and could be scraping on the riflings, which is not a good situation. A good carbon fiber cleaning rod is worth its weight in gold, and can save the accuracy of your rifle. Just my .02
     
  19. nosaj

    nosaj New Member

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    After the first day shooting, patches travel fine...even being pushed from chamber to muzzle
     
  20. Gunsnob

    Gunsnob New Member

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    This is what happens when you buy a crap AR. Go to M4Carbine.net to learn about who makes a good AR and who makes crap.