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AR15.COM
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6/24/2011 2:12:08 PM EDT
I'm hoping someone can help me out with a trajectory chart for my patrol rifle.

Specs:
M16A1 20" barrel
M68 in ARMS 16A mount which is approx 3.5" sight over bore height
Ammo is Fed XM-193

Trying to figure out if a 50 yard zero will still be as flat with the optic mounted so high or if a 100 yard zero would be better.

I know this is not an ideal set up, but its what I have to run with at work.

Thanks,
Rob
6/24/2011 2:29:24 PM EDT
[#1]
Yes, the ballistics work out better at high of bore over height.
Give it a go ––
http://www.vortexoptics.com/content/lrbc
6/25/2011 3:00:55 PM EDT
[#2]
IMO, 200 Yds or Meters actual for the zero and then see where the POI is at 100, 50, 25 and especially 10-15.
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