20 moa

[jakebrake]

Ok I got a 270WSM and am looking to buy the Vortex 6x24 on it.Now I was just wondering if I should get the 20MOA rail for it? I just wanted to start shooting at longer ranges.But the problem is I got a wood stock and I am worried about my cheek weld.Seems like it would be kinda high.Any thoughts on this?

 

[Sully2]

Mighty high if at all. !

 

[Deleted member 46119]

If I remember correctly: without a 20MOA rail you will be fine.

Will you like it better with a 20MOA, I believe so. Almost all my rifles have 20MOA rails or more.

The Vortex 6-24x50 is not that big, I have 10-50x60s. If your cheek weld needs to be high there are lots of pads available.

To 1000yards you should be about 25MOA , less than 2 to maybe 3 times aound.

all the best

 

[FEENIX]

Ok I got a 270WSM and am looking to buy the Vortex 6x24 on it.Now I was just wondering if I should get the 20MOA rail for it? I just wanted to start shooting at longer ranges.But the problem is I got a wood stock and I am worried about my cheek weld.Seems like it would be kinda high.Any thoughts on this?

One of the best advice I've seen from an optics SME ...

Even though the scope adjustment range may be large enough to get to 1,000 yds, you should use a 20 moa base. That's because off-axis optical aberrations that degrade resolution increase with incidence angle. You should set up your rifle so that the incidence angle is minimized for long distance shots (where resolution matters most).

Assume the base is within +/-10 moa of alignment with the rifle bore. Let's also assume your bullet drops no more than 30 moa at 1,000 yds, and you like to zero your rifle at 100 yds. With a standard base, you would need up to -40 moa of adjustment to get to 1,000 yds. That means you need a total 80 moa of adjustment.

With a 20 moa base you would need up to -20 moa to get to 1,000 yds, but up to 26 moa to get to a 100 yd zero (worse case boresight alignment in each case). That means you need a total 52 moa of adjustment. With a 20 moa base, however, the incidence angle at 1,000 yds is 20 moa less, so the image will have less blur.

Cheers!

 

[jakebrake]

Thanks for all the help guys!