Noob here . . . am working my brain into circles like a dog chasing his tail.

On Ballistics AE App - using a Litz projectile characteristics for a Hornady .308 and 2,940 FPS velocity (from box) I get the following MOA drops:

300': -17.8
400': -39.13
500': -63.74
600': -91.92
700': -124.20

I must be confused re: scope adjustment on a Nightforce Competition scope with internal adjustment of 60 MOA.

Question 1

Scope has internal MOA of 60 and the Nightforce rail I use is 20 MOA. Is that MOA cummalative : 80 MOA?

Question 2

Gents, I'm missing something here. I've taken one class on long range shooting and I know we were reaching 700 meters with .308's and sub 170 gram rounds so I'm making a mistake.

If my drop sheet indicates -91.92 MOA for 600 feet but my internal scope adjustment is 60 MOA, what makes up the difference in MOA?

Dumb a#$ question, I know.

Question 1 - yes you would have at least 80 Mona if you have 60 MOA on the scope. Keep in mind if it is a total of 60 moa (I.e. 30 up and 30 down) then you would have 50 moa of up elevation because most scopes are set in the middle of the adjustment from the factory.

Question 2 - keep in mind you do not need to make 90 moa of adjustment to reach 600 yards/meters. For example, to reach 500 yards with my 6.5 5mm I only need 9.5 inches of adjustment at 100 yards to reach 500 yards. Bullet drop does not equal scope adjustment. Using your ballistics calculator set your zero range to 600 yards and look at the path of your bullet at 100 yards then set your scope to xxx inches ( this would be the inches high the bullet passes at 100 yards when zeroes at 500 yards) high at 100 yards.