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## Main Question or Discussion Point

I'm kind of confused by this:

Suppose a rifle is zeroed in at 800 meters (the bullet hits the line of sight at 800m).

This means the bullet must be fired at an upwards angle, the scope stays pointing directly at 800 meters.

I want to find the drop relative to the line of sight.

Say the total bullet drop (at 1300 meters) is 33 meters.

The total drop at the 800 meter mark is 8 meters (bullet exactly on line of sight)

I figured the total drop

However it is only 14 meters, according to my ballistic calculator... another example has total drop = 40 meters, drop at 800 = 8 meters, drop relative to line of sight = 20 meters (not the 32 I would have supposed).

So I'm obviously missing something simple here...

Suppose a rifle is zeroed in at 800 meters (the bullet hits the line of sight at 800m).

This means the bullet must be fired at an upwards angle, the scope stays pointing directly at 800 meters.

*Crude diagram, line of sight = blue, barrel direction = red, not to scale at all*I want to find the drop relative to the line of sight.

Say the total bullet drop (at 1300 meters) is 33 meters.

The total drop at the 800 meter mark is 8 meters (bullet exactly on line of sight)

I figured the total drop

*relative to the line of sight*would be 33 minus 8 = 25 meters remaining.However it is only 14 meters, according to my ballistic calculator... another example has total drop = 40 meters, drop at 800 = 8 meters, drop relative to line of sight = 20 meters (not the 32 I would have supposed).

So I'm obviously missing something simple here...