Maximum scope adjustment and range?

[SteepandDeep]

Dear All,

I am looking at a scope for a bolt rifle. It's got 74 moa of adjustment available for both elevation and windage. Correct me if I am wrong but, at 100 yards, I have 74 inches (vertically) of target to move point of impact around on? (assuming the scope is mounted perfectly in the rings to take advantage of it's full elevation adjustment)

This translates to:
100 yards (74 inches)
200 yards (148 inches)
300 yards (222 inches)
etc?

Seeing if it will have enough adjustment for bullet drop of .30-06 at longer ranges. At 400 yards, this bullet drops 47.4 inches. I can't get a 20moa base for this rifle.



Thanks for your help!

[ucrt]

.

What are you asking?

.

[SteepandDeep]

Hi,

To clarify, 74 moa of adjustment translates to 74 inches of adjustment at 100 yards?

I might have just answered it myself

Thanks for your time.

[nimdabew]

74 MOA = 74" in knuckle dragger termonology so yes. That doesn't mean you will have 74 MOA up elevation though. That just means from stop to stop, you have 74 MOA of adjustment.

[shootist~]

Roughly half of that 74 MOA will be vertical adjustment - assuming your mounting system is square with the world.

From a 200 Yd zero it only takes about 6 MOA elevation get to 400. Add a few more if you use a 100 Yd zero.

Any ballistic software (below is free) will help you get a better grasp.
http://www.jbmballistics.com/cgi-bin/jbmtraj_simp-5.1.cgi