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Long Range Base/Ring Combo

 
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  #1  
Old 12-02-2009, 09:21 PM
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Long Range Base/Ring Combo

I am cheap but my frugalness finally paid off and hopefully will be of some use to some of ya'll. I've been trying to get my Leupold 6.5-20X50 LRT (30mm) mounted as close as possible to the heavy barrel of my Remington 700P (7Mag), provide decent MOA and not spend $250.00! I've looked/scoured over the internet at every possible combination it seems. Mounts with built-in MOA are not cheap, especially if the manufacturer perceives it as "tactical". What a bunch of hog-wash.
For my Base I chose the Leupold 1-piece Standard Long Range Scope Base, Rem 700 LA Matte (595804). It cost me $24.99 from Midway and according to the literature it provides 20MOA. I had "gotten" away from the STD bases years ago because a Redfield unit that I was using on a Sendero .300WinMag sheared off one of the windage bases during load development. I figured at the time it must be a weak design but have since decided they are very sturdy and work well.
For my Rings I chose Burris 30mm Signature Rings Matte High, (165508). They come with synthetic posi-align inserts for -10, 0 and +10 offsets and cost $53.69. I used the -10 insert in the front ring and +10 insert in the rear ring to gain 20MOA more. I've used these rings before in the 1" variety, with the posi-align kit, and they worked great for building MOA in a .223 Rem that I used to own.
I originally ordered the Medium height rings but soon discovered they were too low. I called Midway and told them my mistake and they said "No problem, fill out the Return Merchandise Form (back of the shipping invoice), include the rings and they would make the swap". I have always liked Midway and I will continue to give them my business.
So for $83.12 I have effectively built 40MOA into my rifle/scope vertical alignment and lowered my scope as low as it can go. I have .0620" (5 business cards) between the barrel and scopes objective bell which is what I like. JohnnyK.
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Old 12-02-2009, 09:40 PM
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Re: Long Range Base/Ring Combo

I've watched some slow motion video of what a scope and barrel will do under a decent amount of recoil and IMHO I would be concerned with that close a fit. Let us know whether you see any indications/wear marks where the scope and barrel might be coming into contact.
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Old 12-02-2009, 11:44 PM
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Re: Long Range Base/Ring Combo

Here's a couple of pics showing the gap (1/16) between scope and barrel. I think she'll be alright. JohnnyK.

http://i221.photobucket.com/albums/d...y/IMG_8603.jpg

http://i221.photobucket.com/albums/d...n/IMG_8604.jpg
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Old 12-03-2009, 08:13 PM
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Re: Long Range Base/Ring Combo

nice setup, go for it. Let us know how she shoots.
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Old 12-04-2009, 06:44 AM
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Re: Long Range Base/Ring Combo

Quote:
Originally Posted by Chas1 View Post
nice setup, go for it. Let us know how she shoots.
Ditto! Here's a video link FYSA ...

Slow motion video of scope and barrel flexing | The Firearm Blog

Good luck and happy safe shooting/hunting.

Ed
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  #6  
Old 12-04-2009, 10:29 PM
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Re: Long Range Base/Ring Combo

I've seen that video before. Amazing how that thing can flex like that but I don't think my 7RemMag has quiet the gas that 50BMG does. It's burning alot more powder and pushing quiet a bit more bullet.
After bore sighting at 25yds, I shot mine this evening at 100yds. She seems to be doing just fine. I shot a quick 3-shot group after getting on paper. Light was fading fast and temps were hovering at 40-45 deg.




P.S. That looks like one of those "expensive, Tactical" picatinny rails that's flexing in that video. Maybe he needs another 8-40 screw at the back end of it. JohnnyK.
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  #7  
Old 12-05-2009, 05:19 AM
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Re: Long Range Base/Ring Combo

JohnnyK, nice shooting, looks like ya got a winner Thanks for letting us know how it worked out for ya.
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