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Bought a used Rem 870 barrel

skicatskicat Member Posts: 14,431 ✭
edited November 2014 in General Discussion
and the bore is mirror bright and shiny but there are two rings which don't change position as I tilt the barrel. I can't see any bulge externally with my eye but I'm wondering how to tell if the barrel has been compromised. Is it possible the barrel was ringed by someone polishing the bore with a brush chucked in a drill or is it likely there was an obstruction while fired and I have a very minor bulge? How do I determine?
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    dcon12dcon12 Member Posts: 31,942 ✭✭✭✭
    edited November -1
    quote:Originally posted by skicat
    How do I determine?



    Use your calipers on the barrel. Don
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    notnownotnow Member Posts: 1,811 ✭✭✭
    edited November -1
    Does that have anything to do with being backbored, as it's called ?
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    OakieOakie Member Posts: 40,519 ✭✭✭✭
    edited November -1
    quote:Originally posted by dcon12
    quote:Originally posted by skicat
    How do I determine?



    Use your calipers on the barrel. Don


    And if they don't shoot well out of the barrel, try a shotgun shell. Oak
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    EhlerDaveEhlerDave Member Posts: 5,158 ✭✭
    edited November -1
    quote:Originally posted by Oakie
    quote:Originally posted by dcon12
    quote:Originally posted by skicat
    How do I determine?



    Use your calipers on the barrel. Don


    And if they don't shoot well out of the barrel, try a shotgun shell. Oak


    May I quote you? [:D]
    Just smile and say nothing, let them guess how much you know.
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    skicatskicat Member Posts: 14,431 ✭
    edited November -1
    quote:Originally posted by dcon12
    quote:Originally posted by skicat
    How do I determine?



    Use your calipers on the barrel. Don


    Face meet palm.[:)]
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    skicatskicat Member Posts: 14,431 ✭
    edited November -1
    quote:Originally posted by notnow
    Does that have anything to do with being backbored, as it's called ?


    No . I don't believe so. Even if it was back bored , I would expect the polishing inside the bore would be consistant.
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    victorj19victorj19 Member Posts: 3,642 ✭✭✭
    edited November -1
    Someone once told me that such rings in barrels exist because a spider spun a web in the barrel. which attracted moisture which rusted the barrel, and then could be polished out with steel wool on a bore brush. Just sayin' it could be possible.
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    discusdaddiscusdad Member Posts: 11,418 ✭✭✭✭
    edited November -1
    I don't believe 870s are backbored.quote:Originally posted by notnow
    Does that have anything to do with being backbored, as it's called ?
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    MIKE WISKEYMIKE WISKEY Member, Moderator Posts: 9,972 ******
    edited November -1
    just to note; if the barrel is 'choked' there should be 2 'rings', very slight. one were the choke starts and one were it ends. both will be within 2" of the muzzle.
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    discusdaddiscusdad Member Posts: 11,418 ✭✭✭✭
    edited November -1
    only the EXPRESS 870 has tubes the older wingmasters were fixed chokes= altho it may have been modified for tubes
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    XXCrossXXCross Member Posts: 1,379 ✭✭✭
    edited November -1
    Rem. 870's and 1100's were two of the most common barrels
    to be backbored and adapted for screw-in chokes.
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    OakieOakie Member Posts: 40,519 ✭✭✭✭
    edited November -1
    quote:Originally posted by EhlerDave
    quote:Originally posted by Oakie
    quote:Originally posted by dcon12
    quote:Originally posted by skicat
    How do I determine?



    Use your calipers on the barrel. Don


    And if they don't shoot well out of the barrel, try a shotgun shell. Oak


    May I quote you? [:D]

    sure[:D]
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    discusdaddiscusdad Member Posts: 11,418 ✭✭✭✭
    edited November -1
    back boring to me is what some 3-1/2 inch 12 gauge and some 10 gauge barrels had done to them to better pattern the heavier steel shot loads. Mossberg 835 and browning gold 10...not a choke tube installation process.....your definition differs from mine
    quote:Originally posted by XXCross

    Rem. 870's and 1100's were two of the most common barrels
    to be backbored and adapted for screw-in chokes.
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    Ditch-RunnerDitch-Runner Member Posts: 24,555 ✭✭✭✭
    edited November -1
    the wingmasters have screw in chokes also ( rem choke like the express) from the factory also. I have owned some still have one

    quote:Originally posted by discusdad
    only the EXPRESS 870 has tubes the older wingmasters were fixed chokes= altho it may have been modified for tubes
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    buddybbuddyb Member Posts: 5,244 ✭✭✭✭
    edited November -1
    I had a Remington 1100 a few years ago that had the same rings inside the bore.I took it to an old gunsmith that I could trust and his response was'Thats just the way some of them look.Dont worry about it".I never had any problems with the barrel.
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    skicatskicat Member Posts: 14,431 ✭
    edited November -1
    quote:Originally posted by buddyb
    I had a Remington 1100 a few years ago that had the same rings inside the bore.I took it to an old gunsmith that I could trust and his response was'Thats just the way some of them look.Dont worry about it".I never had any problems with the barrel.


    I hope that is what mine has. The barrel is mirror bright inside and I can see the slight rings at the end of the barrel where the fixed full choke is.
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    MG1890MG1890 Member Posts: 4,649
    edited November -1
    It's used? Hasn't split? You can see daylight thru it?

    Then shoot it. It's a shotgun barrel.
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    skicatskicat Member Posts: 14,431 ✭
    edited November -1
    quote:Originally posted by MG1890
    It's used? Hasn't split? You can see daylight thru it?

    Then shoot it. It's a shotgun barrel.


    I could find nothing wrong from the outside of the barrel so I finished cleaning and lubricating the action and put the barrel on last night. It cycles beautifully now with very little effort. Pretty happy with this little rescue project.
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    Mr. PerfectMr. Perfect Member, Moderator Posts: 66,275 ******
    edited November -1
    Ask the seller?
    Some will die in hot pursuit
    And fiery auto crashes
    Some will die in hot pursuit
    While sifting through my ashes
    Some will fall in love with life
    And drink it from a fountain
    That is pouring like an avalanche
    Coming down the mountain
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