AR Sight In Question

Horse Plains Drifter

Shooting M193 Ball(55 gr.), how high at 25 yards for a 200 yard zero? How high at 50 yards for 200 yard zero? TIA.

NeoBlackdog

Too many variables to give an exact figure but the chart I have says 0.4" high at 50 should put you on at 200.

Edit
Duh You said 25 yards. The chart I have says -.04" at 25 with the scope 1.5" iver the bore

1911a1-fan

with a flat top and scope 25 yards is 2" high for 100 yrd zero at least on my gun with xm193

Toolfogie

http://ballisticscalculator.winchester.com/

guntech59

Using 55gr FMJ @ 3200 fps and the scope 3" above the bore (as most are on an AR). Per JBM calculations.

0 -3.0
25 -1.7
50 -0.7
75 0.2
100 0.7
125 1.0
150 1.0
175 0.7
200 -0.0

ChrisInTempe

Here's Federal's online ballistics calculator. You can generate charts for different loads, ranges, windage, altitude, temperature, the works. Then print it out or save it:
http://www.federalpremium.com/ballistics_calculator/

Federal had a downloadable calculator/catalog. I have it installed, but can't find where to download it now.


Able Ammo also has Federal ballistic charts on their website. These are image files you can download and save:
http://www.ableammo.com/catalog/ammo_charts/federal-charts.html

Horse Plains Drifter

Great, thanks for thr insight guys. I set it at 2" high at 25 yds. According to the calculators, that will zero somewhere around 550-600 yds. I guess I better re-tune that. It shoots way to the left also. I used up half of the right windage adjustment zeroing the windage. I'm going to loosen the gas block and see if I can tweak the front sight to the left a tad. It's a Yankee Hill fold down front sight/gas block.