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scope problems

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8 comments

  • elect1mike
    I just installed a scope on a mauser rifle and am having problems.
    I am using a lazer bore scope and when I try to line up the dot on
    the crosshairs I cannot get the the veriacle line over far enough
    to line up and the screw is all the way. Is my scope messed up????
    or am I using the bore sighter wrong?

    bull.txt
    col elect1mike Illinois
    volinters RRG
    O give me a home where no democrats roam
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  • deadeye46
    Hey Mike,you didn't say what kind of mounts you are using,but if they are just regular bases without adjustment in them,I've reversed my rings or the bases before to get additional adjustment needed.Just a thought,Bob.
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  • ranger37
    Hi Mike.....

    Deadeye has a very good point, and that will correct the problem 99.9% of the time, also there is one other thing to check, I had a customer with the same problem, he had his mauser drilled and tapped by a different gunsmith and when he brought it to me to have it looked at I noticed that the bases we out of allignment, the other guy drilled and tapped the bases off center, not by much but it was enough to throw the scope cross hairs off....

    DO RIGHT GUNSMITH, INC.
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  • Guns & Glass
    Possibility of three things:
    > Laser boresighter is not set right, or off.
    > Mounting system is off.
    > Scope adjustments are off.

    ?#1. What boresighter are you using?
    ?#2. What base & rings?
    ?#3. Before you stsrted adjusting the scope, did you start with the
    scopes adjustments being 'centered'?


    Happy Bullet Holes!
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  • elect1mike
    ok guys here is what I am useing and such
    1. I am useing a lazorlyte bore sighter
    2. Weaver bases and rings
    3. no I have not brought the settings to center
    4. I turned rings around and remounted it didn't help


    bull.txt
    col elect1mike Illinois
    volinters RRG
    O give me a home where no democrats roam
    0
  • leeblackman
    First of all, I have no respect for bore sighters. Call me old fashion, but the only way I see to sight a gun in is on paper. Try that. If you don't feel confident enough to do it, have a gunsmith do it, thats what they are there for.

    Next if its still won't go over enough, then its probably your base, probably not the scope.

    If its not the base then it may possibly be the mounting holes are not lined up true along the reciever. That will require them to be redrilled and could be a real pain.
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  • Guns & Glass
    Have tried & returned that make. Too many deviations in setup. Thgat can be the major problem. Remember, for every one thousandth of an inch (0.001) you'll be off about one inch (1") at 100 yards.
    Human hairs vary from 0.0035 to 0.0070. Don't pull one out of your head, take my word (ouch) for it.

    ?. Your earlier post seemed to say that you were adjusting the lazer dot to meet the vertical line??? Yes-No?

    ??. Actual Weaver, or Weaver style.

    Scope 'Opti-Mechanical' adjustment= Gently screw out both W & E screws. Then gently screw in counting the turns,...till it you start to feel resistance. Back out one half(1/2) the turns. Do seperately.

    Bases installed= With a stiff SQUARE flat edge, lay it on the left & right sides of the bases.

    Do the same along the base tops.
    Lay the edge on top of the bases, 'thru' the screw centers. Straight?

    Any light, or gaps means the base itself is off, and/or the mounting is off.

    Compare bases to each other. Check the 'set marks' of the base bottom to see how it lays.
    Check how the bottom of the screw head make a 'set mark' in the base hole.
    Check the screw heads to see if they fit right in the bases.

    Have you tried pulling the bolt, and centering the target thru the bore to compare?
    If not, try it. Secure the rifle so it won't move, then remove, and replace that bore sighter a couple times. Watch the dot move.

    There can be more, but here's a start.




    Happy Bullet Holes!
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  • Tailgunner1954
    "Have you tried pulling the bolt, and centering the target thru the bore to compare?"
    I've found that when doing a boresight with the "Mk-1 eyeball" system, that a fireformed case (with the primer knocked out) in the chamber helps to cut down the error.

    Some guys like a mag full of lead, I still prefer one round to the head.
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