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Thread: new barrel install

  1. #11
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    Quote Originally Posted by jeto View Post
    my buddy has the gauges. exactly what do you measure.
    You will have to remove the ejector to check this.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  2. #12
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    Quote Originally Posted by polymorpheous View Post
    You will have to remove the ejector to check this.

    depending on the gages and the skill of the operator.

  3. #13
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    Quote Originally Posted by Tweak View Post
    depending on the gages and the skill of the operator.
    Yes depending on what gauge you may have to remove the ejector then you place the go gauge in the chamber and close the bolt eensure that the bolt fully closes then try the same thing with the nogo guage and it should not chamber if it does then you have excessive head space and will probably need a new bolt. But like I said most often you will not need a new bolt. As for Bushmaster not being on the same lower than pond scum level as Oly or hess that is most correct and like I said I do it for peace of mind and will do it no matter who the manufacturer is. Because you never know who was QA that day it might have been Homer Simpson or someone having a bad day.
    Last edited by juliomorris; 01-22-12 at 20:58.

  4. #14
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    Quote Originally Posted by jeto View Post
    i am getting my new bushmaster HBAR 20" barrel tomorrow. i sold my 14.5" barrel. is the anything special i new to get done to it when i stall it. i know how to install a barrel but being that i am switching to a different one, do i need to get anything inspected? my buddy said to get a gunsmith to check the head spacing and something else. don't remember. i thought they were universal and all fit the same and would work with the BCG.
    Are you keeping the bolt you used with the 14.5" barrel for the 20" barrel? If so, you might want to get the head space checked (especially if you have a lot of rounds on the 14.5.



    C4

  5. #15
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    Quote Originally Posted by C4IGrant View Post
    Are you keeping the bolt you used with the 14.5" barrel for the 20" barrel? If so, you might want to get the head space checked (especially if you have a lot of rounds on the 14.5.



    C4
    He's only got 250 rounds on the old bolt.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  6. #16
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    Assuming it was a quality bolt, I would expect it to be fine headspace wise. But being that he's using bushmaster components....who knows, even after just 250 rnds!

  7. #17
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    Quote Originally Posted by jet80tv View Post
    Assuming it was a quality bolt, I would expect it to be fine headspace wise. But being that he's using bushmaster components....who knows, even after just 250 rnds!
    Is Bushmaster known for headspacing issues? I've never read about any issue. Poor staking on a castle nut, sure. But headspace is a major issue that the end user can't remedy themselves.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  8. #18
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    Quote Originally Posted by polymorpheous View Post
    Is Bushmaster known for headspacing issues? I've never read about any issue. Poor staking on a castle nut, sure. But headspace is a major issue that the end user can't remedy themselves.
    Have no idea as to frequency of headspacing issues involving bushmaster guns and or bolts. I have used a Daniel Defense bcg with two different barrels with no issues and did not use a gauge either. Why use a gauge? Either the bolt will lock or it won't....correct? and as you stated, there is no user remedy other than getting a new bolt or barrel extension.

  9. #19
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    if the parts are made to spec then headspace is rarely an issue, but how do you know the parts are made to spec unless you check?

  10. #20
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    You can use an unfired round as a rough check
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

    http://i115.photobucket.com/albums/n289/SgtSongDog/AR%20Carbine/DSC_0114.jpg
    I am American

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