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Testing and rezero the 6.5x284 and 308

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  #1  
Unread 03-15-2004, 07:10 PM
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Testing and rezero the 6.5x284 and 308

After I installed that bubble level thing on my 308 and 6.5x284 I reset the scopes and needed a re-zero (the better part of the exercise).

A trip up to WV to shoot and here's the result(s).

tada



G-A Precision M40A1 type 308. Fed GMM 168's, Leupold 3.5 x 10 M1 LR, Harris bipod and sand sock rear rest.

Confirmation three (3) shot group.



Fouling/bore sight and three (3) shot group.




Tac-Ord 6.5x284, Rem 700, Nikon 2.5x10 Tactical, Harris, sand sock.

142 Sierra MK in unfired brass, three (3) shot group.



140 Game King in once fired brass, fouling/bore sight and three (3) shot group.

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  •   #2  
    Unread 03-15-2004, 08:00 PM
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    Join Date: Dec 2002
    Location: Finland
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    Re: Testing and rezero the 6.5x284 and 308

    Nice! [img]images/icons/smile.gif[/img]

    I especially like those vertical groups.
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      #3  
    Unread 03-15-2004, 08:44 PM
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    Re: Testing and rezero the 6.5x284 and 308

    Petander

    Yeah, I think my shoulder pressure and placement on the rifle butt was a little inconsistent but the groups will do for a zero.
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      #4  
    Unread 03-16-2004, 04:46 AM
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    Join Date: Dec 2002
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    Re: Testing and rezero the 6.5x284 and 308

    Yeah, I guess you remember my whining about all the horizontal drift I had with that 338LM -until I eventually believed it was the bedding.

    I got really allergic to horizontal drift then. [img]images/icons/mad.gif[/img]

    Those groups of yours are what Id like to see on my targets ,its all shoulder and breathing re-work in my case, now that the drift is gone. Well my groups are 2 to 4 times bigger but still... they are consistant now and can only get better. [img]images/icons/grin.gif[/img]

    Good shooting. [img]images/icons/smile.gif[/img]
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      #5  
    Unread 03-17-2004, 04:00 PM
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    Join Date: Oct 2003
    Location: michigan
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    Re: Testing and rezero the 6.5x284 and 308

    I have a quick question about how you measure your groups i see that you got a .700 tho group then minus 308 is that how you (everybody measures them)

    then i'm gonna start celebrating right about
    now [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img]


    cause i've always measured edge to edge and
    never subtracted.
    __________________
    sdr
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      #6  
    Unread 03-17-2004, 04:09 PM
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    Join Date: Sep 2002
    Location: Colorado
    Posts: 273
    Re: Testing and rezero the 6.5x284 and 308

    That is how I measure them. If not, even a 1 shot group would measure .308 (or whatever diameter bullet you shoot.
    Some measure from outside to nearside of farthest bullet hole. This can give you a good idea, but when you get to groups as nice as Dave's, the outside to outside minus bullet diameter works great.
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      #7  
    Unread 03-21-2004, 03:52 PM
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    Re: Testing and rezero the 6.5x284 and 308

    Yup, like stated.

    Measure the outside and subtract one bullet diameter to get a center-to-center measurement.
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