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10/17/2006 9:39:11 PM EDT


I have an Ar10 that is almost exclusively shot at an indoor range.  I have the scope hitting dead on target at 25 yards.  This weekend I will be doing some 100 and 200 yard shooting.  I have been trying to find out where my shots will hit at these distances if I do not re-zero my scope.  I know a 308 does not drop much at 100 yards, but with the trajectory the bullet takes I am a little confused if i will need to hold over or under my intended target.  Thanks in advance.  In case it matters, the gun is running an 16 inch barrel, 180 grain bullets and a trijicon accupoint 3x9 scope
10/18/2006 2:47:28 AM EDT
[#1]
www.eskimo.com/~jbm/software/software.html
10/18/2006 4:18:54 AM EDT
[#2]

Quoted:

I have an Ar10 that is almost exclusively shot at an indoor range.  I have the scope hitting dead on target at 25 yards.  This weekend I will be doing some 100 and 200 yard shooting.  I have been trying to find out where my shots will hit at these distances if I do not re-zero my scope.  I know a 308 does not drop much at 100 yards, but with the trajectory the bullet takes I am a little confused if i will need to hold over or under my intended target.  Thanks in advance.  In case it matters, the gun is running an 16 inch barrel, 180 grain bullets and a trijicon accupoint 3x9 scope


I used a muzzle velocity of 2400fps and this is what I got for you.
25 Yards:  0
100 Yards:  5.1" high
200 Yards:  5.7" high
300 Yards:  1.9" low
400 Yards:  19" low
500 Yards:  47.4" low
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