Page 2 of 9 FirstFirst 1234 ... LastLast
Results 11 to 20 of 82

Thread: Key holing everything! WTH?!

  1. #11
    Join Date
    Jun 2012
    Location
    MN
    Posts
    74
    Feedback Score
    3 (100%)
    another vote for bcm here, on my next build i am going with a hammer forged bcm. if you had the fund you could always go with a bcm upper and bcg and you would be good to go for a very very long time. check out the bcm filthy 14.

    edit: also did you check your flash hider to make sure it didn't loosen on you?
    Last edited by weez440; 02-17-14 at 17:46.

  2. #12
    Join Date
    Mar 2008
    Posts
    2,165
    Feedback Score
    0
    Quote Originally Posted by funkybassplayer View Post
    Seen lots of rounds, usually and a decent rate of fire. I also hadn't thought about a new upper. Would that possible effect it or would it just be nice to go with a new barrel.

    Thanks everyone!
    By upper i meant the new BCM KMR upper receiver group with their enhanced light weight profile barrel.

  3. #13
    Join Date
    Nov 2013
    Posts
    128
    Feedback Score
    0
    Quote Originally Posted by Clint View Post
    Has that barrel had a steady diet of steel case ammo (bi-metal projectile) by chance?

    http://www.luckygunner.com/labs/bras...el-cased-ammo/
    Yes. Monarch and Tula ammo has been through this rifle
    -BTO-

  4. #14
    Join Date
    Nov 2013
    Posts
    128
    Feedback Score
    0
    Quote Originally Posted by weez440 View Post
    edit: also did you check your flash hider to make sure it didn't loosen on you?
    Tight as can be
    -BTO-

  5. #15
    Join Date
    Feb 2008
    Posts
    2,949
    Feedback Score
    31 (97%)
    How about the crown? What does it look like?
    Last edited by Caeser25; 02-17-14 at 18:04.
    I must study politics and war, that our sons may have liberty to study mathematics and philosophy. - John Adams

    The AK guys are all about the reach around. - Garand Thumb.

  6. #16
    Join Date
    Nov 2013
    Posts
    128
    Feedback Score
    0
    Quote Originally Posted by Caeser25 View Post
    How about the crown? What does it look like?
    Crown looks clean as far as I can tell. No burs or gouges
    -BTO-

  7. #17
    Join Date
    Jun 2011
    Location
    Vegas
    Posts
    6,717
    Feedback Score
    5 (100%)
    Quote Originally Posted by Clint View Post
    Has that barrel had a steady diet of steel case ammo (bi-metal projectile) by chance?

    http://www.luckygunner.com/labs/bras...el-cased-ammo/
    From the link:

    "the Brown Bear and Wolf carbines exhibited significant accuracy loss by the 6,000 round mark. It is quite possible that this first started occurring earlier than 6,000 rounds, because groups at 4,000 were well within standards of 5MOA or less, while some shots at 6,000 “keyholed,” or impacted the target sideways."
    "I never learned from a man who agreed with me." Robert A. Heinlein

  8. #18
    Join Date
    Nov 2013
    Posts
    128
    Feedback Score
    0
    Quote Originally Posted by Koshinn View Post
    From the link:

    "the Brown Bear and Wolf carbines exhibited significant accuracy loss by the 6,000 round mark. It is quite possible that this first started occurring earlier than 6,000 rounds, because groups at 4,000 were well within standards of 5MOA or less, while some shots at 6,000 “keyholed,” or impacted the target sideways."
    Yeah I've actually read that article. A good read.
    -BTO-

  9. #19
    Join Date
    Mar 2012
    Posts
    390
    Feedback Score
    2 (100%)
    One thought before you go replacing the barrel would be to clean it very thoroughly. It may very well be shot out at 5K rds - but, it may not. I would recommend busting out some serious cleaners (ie Barnes CR-10) before you sign it off and get a new barrel. For very heavily fouled (read copper-fouled) barrels this may occasionally work wonders. I had a surplus rifle that shot like poo until I burnt through a serious pile of patches and CR-10. It was so fouled the patches came out complete blue from the accumulated copper fouling.

    If not, I am sure any one of the quality barrel/bolt makers listed above will be able to provide you with a satisfactory replacement.
    Last edited by mic2377; 02-17-14 at 18:56. Reason: spelling

  10. #20
    Join Date
    Nov 2013
    Posts
    128
    Feedback Score
    0
    Quote Originally Posted by mic2377 View Post
    One thought before you go replacing the barrel would be to clean it very thoroughly. It may very well be shot out at 5K rds - but, it may not. I would recommend busting out some serious cleaners (ie Barnes CR-10) before you sign it off and get a new barrel. For very heavily fouled (read copper-fouled) barrels this may occasionally work wonders. I had a surplus rifle that shot like poo until I burnt through a serious pile of patches and CR-10. It was so fouled the patches came out complete blue from the accumulated copper fouling.

    If not, I am sure any one of the quality barrel/bolt makers listed above will be able to provide you with a satisfactory replacement.
    Is was a thought of mine too but I have cleaned and cleaned and cleaned. Blue patches just like you described.

    I have shot a good but of steel cased ammo and coupled with the high rate of fire and round count I have a good feeling that the barrel may be shot. Gonna look into a CHF barrel from one of the numerous companies that manufactures and/or sells them. Thanks for everyone's help!
    -BTO-

Page 2 of 9 FirstFirst 1234 ... LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •