How high is a 20 MOA rail?

200 inches
One MOA = 1″ at 100 yards or 6 inches at 600 yards. 20 MOA = 200 inches at 1000 yards.

Is a 20 MOA base necessary?

Why would anyone need a 20MOA base? A 20MOA base is only needed for certain applications. When a shooter is adjusting the elevation dial on the scope for ranges longer than what the gun is zeroed for, at some point, they will run out of elevation in the scope. In many instances this is around 600 yards, give or take.

What is 30 MOA Picatinny rail?

There are 60 minutes in 1 degree so 20 minutes is 20/60 or 1/3 of a degree. The rail forms a triangle with the action so for a 7 inch long rail the height difference will be: 7 inches * sine(0.33°) or about 0.0407 inches. For 30 MOA: 7 * sine (30/60) = 0.0611. for 40 MOA: 7*sine (40/60) = 0.0814.

What distance is a 20 MOA base needed?

The scope mount cants downward at 20 MOA, which will allow you to zero your gun at a greater distance. We typically recommend zeroing a rifle with a 20 MOA rail at 200 yards. Most of the time you will not be able to zero a gun with a 20 MOA rail at 100 yards.

Do I need a 20 MOA base?

A 20 MOA base is a good go to MOA as most long range scopes will be able to zero with one and not have issues as they usually have 65 MOA+ of internal elevation. Some scopes like the OP’s Razor, who have 125 MOA of internal elevation, can get away with 30 or 40 MOA bases and allow the shooter to shoot farther and have a clearer view at the longer ranges but with a .308 to 1000 it’s not really needed.

Is a 20 MOA scope base needed?

A 20MOA base is only needed for certain applications . When a shooter is adjusting the elevation dial on the scope for ranges longer than what the gun is zeroed for, at some point, they will run out of elevation in the scope. In many instances this is around 600 yards, give or take.

What does 20 MOA base mean?

At longer ranges, you need to raise the trajectory of the bullet to loft it higher to compensate for drop over the distance to your target. A 20 MOA base means the base is angled upward toward the front, such that without adjusting your scope crosshairs at all, it has the effect of adding 20 MOA of UP adjustment.