20moa base or not?

Personally I'd get Burris rings with the posilign inserts and a set of offset inserts. It will give you the ability to change the amount of cant from 0-20 minutes in (5moa?) steps. Until you put that 20moa base on your rifle and see where it zero's with your scope, I think its a crapshoot. Whereas the adjustable insert rings you can use no matter what and if 20 is too much, you can use 10 moa or 5 and still have zero at closer distance.
 
Does the scope require the base? My zeiss did and I had to use one to zero it properly. If not I wouldnt use the base.
 
wild1 said:
Does the scope require the base? My zeiss did and I had to use one to zero it properly. If not I wouldnt use the base.
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yah don't use the base if you don't have to. sometimes you get a crappy scope from the factory and you need it but a good scope with at least 40-50 MOA of elevation shouldn't need it.
I had one on my 223 and it gave me a 400+ yard zero, pretty useless for my purposes so i put a 0 MOA base on it and am good out to 1000yards with the right bullet.
 
Before you buy your base, see how much vertical movement your scope has.

Put up a target at 100 yards, one that is 20" or 30" high. Place an aiming mark near the top. Sight in, until your shots hit the aiming mark. Move 5 minutes left (20 clicks), fire a shot, then move 10 minutes right (40 clicks) and fire another shot, then move back to the middle (5 minutes / 20 clicks left); you should have one bullet hole that is about 5" left of your aiming mark, and another one about 5" right of your aiming mark.

Then move your elevation down all the way, and fire a shot (or a group). It ought to be directly underneath your aiming mark. Measure how far. See if you can also move 5 minutes left of centre and 5 minutes right of centre, and have a shot appear 5" left and 5" right.

The distance (in inches) that you were able to move your shots down, is the amount of "down" adjustment that you have in your scope (in MOA). If this distance is 20" or more, then if you install a 20MOA base, you will enough "down" adjustment in your scope to zero yourself for 100.

Many scopes won't be able to move 20MOA down from their 100 yard zero. If yours won't do down 20MOA but if it will go down more than 15", then a 15 MOA base could be used.

I would also suggest that you consider the Burris posi-line system (plastic spherical bushings); it's a good setup, and allows nice reasonably fine-grained (approx 5 MOA) adjustments to be made.
 
probably depends on scope too

My ATR .22-250AI sits with 0 moa rail, with a NXS 5.5x22x56..... EASY gets 1200 yrds....Had NO problem with obtaining that distance is Summerland 2 yrs ago.....

So I would imagine it heavily weighs on how much UP factor your scope has in the 1st place..... For 500 yrds.... Dont bother.... most scopes should do it with out I would think...
 
wild1 said:
Does the scope require the base? My zeiss did and I had to use one to zero it properly. If not I wouldnt use the base.
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Does that not depend what distance you zero and adjust to? The Nikon 6-18x has 50 MOA adj, the 6-24x has 30 MOA... Hence the 6-18x will shoot out further without a base (or inserts) than the 6-24x.
 
I had a z1000 scope that was to be set up with a 20moa base so you would not need to make any adjustments when set up. He said he was using a bdc reticle and I assume it would be setup similar, with nikon determining which base is required. But with a normal reticle you could use whatever base you wanted to and zero wherever.
 
personally im just worried about having the adjustment, in the scope to zero it for 100, with a slanted base.. i can use my bdc reticle ( i hope ) to shoot further. gunna give it a shot anyway. i have a buddy who wants to buy my nikon scope anyway and i'd maybe try one of them falcon scopes out, not a whole pile of recoil or anything.if i like the base, i'll eventually throw it on my 6br, (hope to attempt shooting further then 300 with it sometime soon) and get another base for my 22-250, 0moa or whatever.
 
Silly question here but......

Will your 22-250 even shoot that far reliably?
I had a 220 swift and it shot fantastic easily 1/4 moa at shorter ranges but because it was using 40 gr. bullets i woudn't have wasted the ammo out past 400.

What is yours set up for ?

M.
 
im not expecting it to shoot more then 400.. but i can see myself tryin a bit further.. if i was hoping to reach out to twice that or something i'd have it zero'd for 200, or 300 or something off the hop, this will be just a coyote, gopher gun type thing (not like its good for much else..) i might just order a 0moa base and wait for it to come then pick up a used one..
 
As was mentioned before, it depends on your scope. If your scope has the elevation range then you are fine.

I have zeroed many rifles with 20MOA bases at 100yds.

99% of the bases we sell are 20-25MOA. As long as your scope has the adjustment range it gives you a very versatile setup.
 
Oh and one more thing I just thought of. When I had a 20moa base on one of my rifles with a bushnell tactical scope on it I couldnt zero at 100m. 15moa would have worked but 20 was too high. It was a big deal to me as I shot alot at 100m with that rifle.
 
ya i think im going to stick with just a 0, take less of a chance, i really wont be able to utilize a 20 moa base on this rifle anyway. i would however love to throw one on my 6br, but i never get the oportunity to try shooting further then 300..
 
wild1 said:
Oh and one more thing I just thought of. When I had a 20moa base on one of my rifles with a bushnell tactical scope on it I couldnt zero at 100m. 15moa would have worked but 20 was too high. It was a big deal to me as I shot alot at 100m with that rifle.
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Which Bushnell were you using? The 10x42 has 100MOA of adjustment in a 1" tube which should have been plenty. However their 6-24 only has 50MOA of adjustment in a 30mm tube, which still boggles me.
 
This was using a 3200 5-15x40mm. I would have to recheck but I dont think I have anywhere near 100moa adjustment in it. I think it is closer to 60.
 
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