Quote:
Originally Posted by Crow Hunter
Just as an aside.
Bullets don't rise. 
They are falling from the moment they leave the barrel.
The "rise" you see is the face that the barrel is tilted up in relation to the Point of Aim of the sights. You are actually "lobbing" the bullet towards the target with a rainbow trajectory. Like an underhanded pitch. What you are doing is picking a point in the "lob" that hits where you want it to.
There will also be a 2nd point that the "lob" will cross your line of sight which varies based on the point that you have it 1st cross.
The very high sight line of the AR increases this effect.
This excellent post by Molon might help you understand it better.
http://www.m4carbine.net/showthread.php?t=65679 |
If we are picking nits, ALL bullets rise. It is physically impossible to fire a gun parallel to the ground. we live on a sphere, so the ground it always falling away from us in all directions.
Now, in practical application, all bullts are slowling down when they leave the barrel. Bullets have a parabolic flight path, and therefore do rise above the line of sight. Your description of a lob is essentially correct. And when fire a rifle at distance, the bore is ALMOST ALWAYS on some incline towards the target. This incline is of course determined by the distance to the target.
To the OP.... I have that exact same eotech..... If u dig out the manual it says to zero at 50yrds. this will get u on target with the top dot from 50-200yrds, bottom dot @500yrds, and bottom "T"of the circle @7yrds. Have fun
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