20 moa vs 40 moa base

cqb556

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Minuteman
Mar 9, 2011
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Looking at setting up a Leupold VariX 3 3.5x10x40 scope onto a remington 700 .308 rifle with badger rings. With a standard base, I max out at about 800 yards. Is there a difference between 20 moa vs 40 moa base? Any info would be greatly appreciated.
 
Re: 20 moa vs 40 moa base

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: cqb556</div><div class="ubbcode-body">Is there a difference between 20 moa vs 40 moa base? </div></div>

About 20moa.

You want the 20moa base. The 40moa won't work.
 
Re: 20 moa vs 40 moa base

With your current (I assume 0 moa) setup, dial "down" from your 100 yard zero until you hit bottom.

However many moa that is, you don't want your sloped base to exceed, if you want a 100 yard zero.

If you have over 40 moa down, you could go with the 40 moa base, but that is not likely on a 1" scope. Maybe, on a 30mm scope. It depends on a lot of different tolerances and how they stack up.
 
Re: 20 moa vs 40 moa base

Gonna depend on what you are shooting. that 20 minute base will take you to your 800 yards and beyond, probably out to 1000ish depending on how much elevation is on your scope.

If you are shooting long range 22 lr way out the 40 minute out work. BUT you may lose your ability to zero up close depending on your scope.

If you are shooting a cartridge that is capable of extreme range, ie 50 bmg, 416, 338 etc the 40 minute base may the way to go. You would probably not be shooting any of these style rifles in close, so a close range zero would probably not be an issue. AND you will probably actually need all the elevation you can get.

I will say that if you run a scope with lots of elevation, you could run the 40 minute. That Leupold will not I dont think. On me 22 i run an swfa fixed 10. It has a lot of elevation, So I can still run the heavily canted base and get a close zero.

Again, like was said, a 20 minute base will cover most any "typical" base.
 
Re: 20 moa vs 40 moa base

Is the scope your referencing the long range version M3, if so you may have enough travel to bring it back down to zero at 100.. if its not a long range optic, IE M3 you probably only have 30-40" of TOTAL travel.. With that and probably a duplex crosshair you'd be lucky hitting something at 1000yds unless its one of those 18"x24" plates...

Good luck...

Also a a 40 MOA base, you'd need a scope with atleast 60+MOA PROBABL CLOSER TO 100MOA to bring it back to A 100YD ZERO...

Again good luck with that...