Scope Mount Question

Discussion in 'General Rifle Discussion' started by Tackleberry1, Mar 22, 2010.

  1. Tackleberry1

    Tackleberry1 New Member

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    This is a serious brain teaser for you scope mounting guru's out there. Hear it goes...
    I've got a Leupold VX 3 40mm mounted to my Thompson Center 30.06.
    It's mounted in a Leupold QR "Quick Realease" mount/ring set up.
    Today I purchased a 20" free floated flat top upper receiver for my M4 so I can get into varmint hunting.
    I'd like to be able to use my VX3 without take the QR rings off the scope or the QR base off the Thompson.
    I was scouring the net today for a QR mount that will lock onto my flat tops picattiny rail and accept the QR rings on my scope which of course are positioned for the QR base on my Thompson. I had no luck.

    Does anything like this exist?

    I've found plenty of QR rings that will fit a picatinny but that would require me to remove the QR rings for the Thompson.

    If I could find the mount I'm dreaming of it would allow me to drop the VX 3, Thompson rings and all, onto the AR, rezero, record the difference, and switch back to Thompson come deer season w/out going through a box of 30.06 to find zero again.

    I may be looking a level of interchangeabillity that just does not exist without some custom mill work.

    Advice would be appreciated.

    Tackleberry1
     
  2. jeepcreep927

    jeepcreep927 New Member

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    I think I am getting it, but I don't think you are going to find a Leupold QR base that will fit on top of a 1913/ Weaver rail. That's a pretty obscure combination.

    I might offer that you could get a picatinney mount for your T/C (what model? EGW makes a 1913 mount for the Encore). Get Q/R rings that fit a 1913 mount. Then you could swap back and forth. The only issue I foresee is the height of the scope. Assuming you are using medium or low rings now on the T/C for proper cheek weld, I doubt you'll get clearance enough with mediums and definitely not with low rings, on the AR. If you do manage to get the clearance, your cheek weld and head position will be all jacked up because the scope is too low. Generally you need high or extra high rings on a flat top AR.

    Conversly, if you get high rings in order to be comaptible with the AR flat top, when you swap the scope back to the T/C, you run into the same problem as having mediums on the AR, differing now in that the scope is too high. You might remedy that by using medium or low rings and putting a riser on the AR to remedy both the clearance and cheek weld/ head position issue.

    I realize you'd have to buy a new base for the T/C as well as new rings, but that's all I can come up with. Sucks that you might not be able to use what you already have. I find myself doing that all the time.

    Good luck.

    EDIT: Sorry wrong pic on the Burris rings, they're not Q/R but you get the idea.
     

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    Last edited: Mar 22, 2010

  3. cpttango30

    cpttango30 New Member

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    first both rifles are going to be shooting to different POA's and POI's so switching scopes is going to be a PITMFA. Your going to need to sight it in each time it hits the other rifle. Rifles are like women. They all like Diamonds just some like 1 ct and others like 4 ct and still others like 2ct fancy yellow diamonds.

    In the end I think it would be better off to buy another scope even if it is a lower end scope. The Nikon Monarch and Bushnell Elite 4200 and 6500 scopes will run right with the VX-III or VX-3 line of scopes from Leupold. Also take a look at Sightron. The SIII will out shine the most expensive Leupold for half the cost. The SII will hang with the VX-3 as well. All of these scopes offer the same clarity and brightness as a VX-III or VX-3 Leupold for a fraction of the cost.

    Just my thoughts.
     
  4. lonyaeger

    lonyaeger New Member

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    Also, if you decide you need them, I have for sale a set of Burris Xtreme Tactical rings in "high" (3/4 inch) that were a little too high for my rifle that I ordered off the web but are a PIA to return on the web.
    [​IMG]
     
  5. jeepcreep927

    jeepcreep927 New Member

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    Yeah, .223 to 30-06. You'll have to sight in again anyways. Shoulda brought that up too...

    Tango, do you know how many tired brain cells I killed and how many tax dollars I wasted figuring out a way to work that out while I was on the clock? I'll just give you my home address and you can come over and kick me in the baby maker...
     
  6. Txhillbilly

    Txhillbilly Active Member

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    Once again,Tango is correct. Just save some money and get another scope for your AR.And do take a look at Sightron scopes,I just put a SIII on a new rifle and it is a great scope.All the bells and whistles for alot less money.
     
  7. Tackleberry1

    Tackleberry1 New Member

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    You guys were right. I could not find the QR combo I was looking for.:( I picked up a YHM extended riser and a pair of WARNE 1" rings. Looks beefy and rock solid. Got it out this afternoon for the first test drive and a pulled several 1/2" MOA groups at 100.

    Very Happy!:)

    Thanks for the advice on the "other" scopes but I'm partial to the VX 3 with it's Boone & Crocket reticle so I think come September I'll just pick up a new one for my Thompson.
     

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  8. Tackleberry1

    Tackleberry1 New Member

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    I've gotta plug these guys from J&S out of Olympia WA.

    They can build an upper receiver.

    I think they cut their own barrels too. Mine's stamped J&S 1/8.

    I picked up the complete upper pictured above which included the 20" heave free float, A2 bird cage, quad mount gas block, houge free float aluminum tube, mil spec receiver, complete MIB bolt, carrier, and charging handle for $500.00, less the scope/mount of course.

    Had her out 3 times thus far an consistantly cutting sub moa groups!

    Glad I found these guys at the Portland gun show. I had nearly dropper $900 on wiz bang set up from YMH.

    The $400 difference was enough to push me toward a smaller shop and these guys know what there doing.

    Tack.
     
  9. Tackleberry1

    Tackleberry1 New Member

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    300 yard results

    When zero'd at 200, I've got 1" of rise at 100 and 8" of drop at 300 consistantly. The pick is 300 yards using the relevant "lower" reticle on my VX3's Boone & Crocket reticle. The pic is sideways, rounds impacted 6" high and slightly left. Conditions were overcast w/5 to 10 mph winds from right to left.

    Sub 2" groups like this were the norm for the day at 300 yards. Looks like I've got a 3/4 moa gun. The Boone & Crocket reticle did not really work for the 55 gr loads I was firing but they grouped well and once I dial the scope for 300 I should be ready for the next competition.
     

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  10. pandamonium

    pandamonium New Member

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    Hey Tack, thats a nice lookin m-4 ya got there, nice shootin, enjoy!!