Originally Posted by
Grand58742
Didn't realize the sight height has that much impact.
Thanks guys.
Yeah, it's a big reason the short zeros like 25 yd have a very parabolic trajectory. BTW -I have always used 2.6 in as a sight height.
Hornady and some of the other ammo manufacturers have good ballistics calculators on their sites. The info from the Federal site gives a BC of .378 and a muzzle velocity of 2470 fps. Plug that in with a 100 yd zero and 25 yd graduations and you will have your answer. I just did this for the Federal 115 round, as well as SSA 85 gr TSX ammo, but using a 50 yd zero, which I prefer on ARs.
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