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Problem with M700 bases

 
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  #1  
Old 01-14-2002, 07:04 AM
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Join Date: Oct 2001
Location: Livonia, MI
Posts: 108
Problem with M700 bases

I bought a Remington model 700 VS in 308 about a month and a half ago. I put a weaver two piece bases on it and some generic rings with a Leupold 3X9 VarX-II. When I bore sighted the gun I noticed it was near the top on the elevation in the scope for 100yds. Also the scope seem alittle out of focus or like a heat mirage on the barrel. But the barrel was cold. I did not think much of it because this was not the scope that was going to remain on the gun. I broke in the barrel, shooting roughly 2 boxes of shells over all.

I bought a Nikon 6.5 X 20 and millet rings to work with the same two piece bases. When I mounted the scope and went to bore sight it. I ended up being at the top of my elevation again. I shot the gun at 100 yds and I could not dial the elevation any closer that 1 inch low at 100 yds. The scope again (like the Leupold) looked a little out of focus (heat mirage) when looking at the target.

I talked to Dave King and I loosened the rear ring and the scope did not move. But when I tightened the rear ring and loosened the front ring the scope ring potted up off the base about .020 or so (I did not measure exactly yet). We came to the conclusion that the two piece base was torqueing or flexing the scope.

My question is how to fix this problem? I value Dave's opinion very much, and am by no means disregarding it. I figured that some of you all might have had similar experiences and I would like to know how you fixed them.

Matt
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  #2  
Old 01-14-2002, 07:23 AM
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Join Date: Jan 2002
Location: Western New York
Posts: 47
Re: Problem with M700 bases

Matt, it sounds like you have 1 of 4 possible things going on.
1. Front and rear base switched, not likely since we are all smarter than that. Solution-- change front base with rear base.
2. Bases are cut wrong or for a different rifle. Solution-- install Leupold steel QRW bases or a different brand.
3. Action is not bedded properly with the Aluminun bedding block therefore flexing the action. Solution-- Skim bed the action relieving any stress.
4. Receiver is not machined correctly. Not likely but if this is the case, rings with offset inserts would work.

I would look at a different set of bases first and go from there.
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  #3  
Old 01-14-2002, 07:35 AM
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Join Date: Oct 2001
Location: Livonia, MI
Posts: 108
Re: Problem with M700 bases

Thomas B.

Thanks for the response. The bases are on correctly. My end goal was to use the Leupold Long Range 1 piece base and rings. Would the 1 piece base solve any of my problems? The rings with offset inserts, are these the Burris rings?

Matt
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  #4  
Old 01-14-2002, 07:41 AM
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Join Date: May 2001
Location: Pennsylvania
Posts: 1,757
Re: Problem with M700 bases

Matt


The Burris sight-a-line rings with the .020" inserts should solve your problem.
It does seem like the front base is thicker then it should be by your discription.
I would check the thickness of another new set of bases for your rifle.

Darryl Cassel

[ 01-14-2002: Message edited by: Darryl Cassel ]
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Darryl Cassel
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  #5  
Old 01-14-2002, 07:43 AM
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Join Date: May 2001
Posts: 256
Re: Problem with M700 bases

I like to lap my rings making sure they are in alignment and also that the ring is making full contact with the scope. Get a 12 to 15 inch piece of 1 inch round stock. Measure it and make sure it is exactly 1 inch the entire length. Then get some sort of lapping compound. I often use a brand called Clover. Clamp rings down tight enough so that you can just slide the bar through. Begin lapping and the uneven spots will show pretty quick.
I do like the Leupold one piece base but still lap in the rings.
Take care.
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  #6  
Old 01-14-2002, 02:11 PM
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Join Date: May 2001
Posts: 256
Re: Problem with M700 bases

Like Darryl said, the Burris rings with the inserts are nice. You might want to just start over and get the Leupold long range base. It only costs about $15 and should solve your problem. It is angled and would give you additional elevation and being one piece, is very solid.
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  #7  
Old 01-14-2002, 08:47 PM
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Join Date: Oct 2001
Location: Livonia, MI
Posts: 108
Re: Problem with M700 bases

The Leupold Long Range base should be in tomorrow. I will see how this fits and go from there.

Thanks for all the help.

Matt
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