A goofy question about a2 sights at zeroing

[arsterling180]

This is a goofy question based on starring at a ballistics calculator too long. I am using 62gr m855 american eagle for this.

I've zeroed a 20 inch a2 upper with a carry handle at 25 meters on the Z setting, and gave it the two clicks down back to 6/3. If I just blindly look at a ballistics calculator assuming a 25 meter zero, a 2.5-2.6 inch height over bore it still has quiet a bit of height at 300 meters. It would be about ~6 inches high.

Does clicking it down that two clicks to 6/3 lower the point of impact to make it roughly 25/300 meters?

 

[12Bravo20]

Meter Battle Sight Zero works well with the M16A4 and M855 ammo. Once you zero at 25 meters with the rear drum on Z then turn it back to 6/3, you will be making good hits on a man sized target at 300 meters without having to adjust the rear sight. The basic 25/300 zero while not perfect, has worked well for about 60 years now.