Such a thing as a 10 MOA scope rail??

jsdboy

jsdboy

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Hello all - need some help here. It has to do with 100 yd rim fire bench rest:
the scope I am using (weaver classic v series 6-24 x 42) has run out of vertical adjustment for the ammo that is being used (v. low velocity lapua).

The scope specs say that there is only 27" of adjustment - although I have never actually twisted the knob to see what the range is. Assuming it is 27", if i were to get a 20 MOA rail would that then do away with adjusting the scope down to shooting at 50 yards? My brain is hurting here trying to visualize this :confused:--- so to get to the point, the question I can't seem to come to terms with is: would i still be able to shoot at 50 yards with a 20 MOA scope rail on the gun??

something in me is saying no, too much cant for a mere 27" of adjustment, and a 10 MOA rail would give much more flexibility for this rig, I can not find a rail that is 10 MOA and i'm just getting more confused the more i think about it. should be high school math stuff, however, i am way outa high school...................

thanks in advance, jsd
 
NEAR makes 10MOA rails...I have one on my Savage LRPV in .223. My maximum shooting distance is 500yards, and I did the math and decided that 10MOA would get me out there, while still allowing 100 yard shooting. IIRC, 20MOA would have worked also, but would have put me very close to the limits of the adjustment range of my scope. Since the optical quality suffers the further you get from the center, I decided to try the 10MOA set-up and it seems to work well for me.

I'm sure you can find other manufacturers with 10MOA rails if you look around.
 
Shooting standard velocity target ammo I need to come up about 6.5-7MOA from my 50yd zero to my 100yd zero. Assuming your scope really has 27" (should be MOA?) of adjustment I would expect that you would be ok with a 20MOA rail, but it would be close. How much more adjustment do you need to get on at 100yds? Another alternative is to use Burris Signature Zee rings with the plastic inserts and you can tweak the offsets until you get both zeroes.


Mark
 
jsdboy
How much more elevation do you need to get you on at 100yd ? A 10moa rail may not be sufficient to get you on at 100 and recover enough of the adjustment range in your scope.
Once you get your 50yd zero determine your comeup needed for 100 and see what you have to work with and how much you need to add for a zero plus sufficiently more to get you back into the useable range.
You have to remember also that your 50yd zero may not be in the middle of the adjustment range. I would suspect it is not if you have run out of adjustment at 100yd. Your comeup with Lapua Standard from 50 -100 will probably be 6-8moa approx.
Another alternative to a rail might be a set of Burris rings with the interchangeable moa inserts.
 
wow, thanks gents!
- had a great chat with the owner of NEAR products (Richard) who feels that the rails he makes for the short action savage center fires might work for the MK II rimfires. I just have to do my part and measure up some mounting screw distances and try to get an idea of radius of the recievers. his stuff is pricey, sure is classy. something more suitable to a weatherby xxii............
- yes if i recall i need almost two full rotations of the elevation turret to bring P.O.I. from 50yds to 100 yds, this would equate to about 8 inches or therabouts. one rotation = 5" @ 100 yds. so the 10 MOA would be a big help at bringing the reticles more to center.
- I have heard of the Burris Zee rings with the inserts, BUT, i thought that was only for scope body protection. what a revelation to hear that there are 'eccentric' halves to be able to zero a scope. here is an interesting article i found after i read the Zee ring suggestion: http://www.snipercentral.com/burrismounts.htm
- and of course our local retailer does not have such a thing so i will have to do some online shopping and order, or just call one of the bigger shops in Vancouver maybe.

All in all, Man, this is what CGN is all about for me, I asked, there was help, and now i have a direction in which to go! I suppose if i really wanted to simplify things i would just sight the darn thing in to one of the mildots - i have done that before and then in the middle of a shoot not been able to remember which dot down it was that i was using, argh. I want the crosshairs more in the center of the scope, it makes it easier to acquire the target with this Weaver scope.

Thanks again!!
 
dryfire said:
Contact mysticplayer here for the Burris stuff. Tops for advice and service.
Click to expand...

thanks for pointing me to a dealer to work with. sent Mr Teo a copy of this entire thread and he got back to me immediately and it looks like once the weekend is over I will be able to get the rings and insert kit on the way here. very encouraging indeed. and exciting. If these rings work well i can see myself putting them on a couple of other rifles i have in mind.............
the assistance is much appreciated. good shooting! jsd
 
boy, that was fast! now just to get to the range with some tools and play with these shim things. I am thinking I might just dedicate this rifle to 100 yd shooting and try centering the cross hairs on the scope, shooting, and then "chasing the bullet" as the instructions call it. will report anon
many thanks to Mystic precison for such rapid service!
jsd
 
finally finished!

taken a little while, have finally got the Burris Signature Zee rings that i got from Mystic Precision on the gun and did the "chasing the bullet" thing that the directions and Jerry's article talk about.
so I put the crosshairs in the center of their adjustment range and plopped the scope into the rings with the "0" or neutral inserts and this is where the rifle shot at 100 yds:

scopecrosshairscenteredmountedwithnuetralinsertsonsavmkIITR.jpg


I thought I would try to get all fancy like in the directions by using the 20 MOA insert at an angle. nope. the next tactic was to work at 90 degree angles - much simpler - so after finding that i continually put the inserts in the wrong ring :bangHead:I started getting somewhere. used the 20 MOA to "push" the scope down and the 5 MOA insert to "push" the front of the scope to the left.
A fellow at the range who has these said that he found he could virtually sight in his gun by very small tweaks to the inserts. Crums, the challenge was on. After the 9th time of removing the scope and twiddling the inserts I do believe i have got close enough. I must say that this little job is not recommended for the emotionally fragile - i find it embarrassing when i cry at the range...........................

TheendresultofaimingwiththeZringinserts.jpg


cheers!
jsd
 
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