AR15.Com Archives
 Bullet Flight Based on Zero Graph
wedgehead  [Member]
12/15/2006 6:28:33 PM
Here's a graph I threw together to show the different bullet paths based on zero. For what it's worth.

Wedge


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Firefoxammo  [Member]
12/16/2006 1:54:20 PM
I always wondered why the army had us zero in at 25 meters. Looks to be the same point of aim for 25 meters as the 375 meters. Interesting .
ArimoDave  [Member]
12/16/2006 2:05:33 PM

Originally Posted By Firefoxammo:
I always wondered why the army had us zero in at 25 meters. Looks to be the same point of aim for 25 meters as the 375 meters. Interesting .


Yep. And, the maximum ordinate is only about 10 inches or so. If you use a six-o'clock hold for most things, you can achieve a hit (in theory) at any range from 25 yds to 350 or more. At closer ranges one tends to aim higher anyway since the target is so big. Another interesting thing is if one uses the six-o'clock hold at 300 yds on a Marine Corp Dog Taget, this sight setting will work nicely for hitting center of mass on that target.

Dave.

P.S. As you can probably tell, I'm an advocate of using a six-o'clock hold with iron sights.

Tall34  [Team Member]
12/16/2006 6:05:25 PM
P.S. As you can probably tell, I'm an advocate of using a six-o'clock hold with iron sights.



I'm going to ask a stupid question....
Is the 6 o'clock hold is having your front sight at the base of the target?
Again, I'm new, 5 months, to ARs so please keep all flaming to 2nd degree burns at worst
TO
Firefoxammo  [Member]
12/16/2006 6:11:05 PM

Originally Posted By Tall34:
P.S. As you can probably tell, I'm an advocate of using a six-o'clock hold with iron sights.



I'm going to ask a stupid question....
Is the 6 o'clock hold is having your front sight at the base of the target?
Again, I'm new, 5 months, to ARs so please keep all flaming to 2nd degree burns at worst
TO


Inbetween 25 and 375 Meters the rounds are rising while in flight so yes by aiming low you are getting center mass hits. The graph will give you an idea on other zeros. I have always zeroed in at 25. It's just the way Iwas tought and it make perfect sense now. We use to shoot targets out to 300 meters.
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