Ballistic Charts

Thought you all might be interested in some recent shooting result. I have always known that me AA S400 XTRA FAC shot flat but I had never really taken the time to document it. Bellow are my results compared to those predicted by an unnamed ballistics software. The pellet was the CP .177 10.5 grain and my S400 was set at full power which yields an average of 980 FPS for 22.4 ft lbs.

Yards POI Ballistic Software Results
10 0 0
20 +3/8 +.89
30 +3/4 +1.34
40 0 +1.25
50 -1/4 + .65
60 -1 1/8 - .52
70 -3 9/16 -2.38

To be fair airgun ballistics are extremely complex and I got the software free online. While I am not expecting perfection it would be nice to have something that was a little closer to real world results. Has anyone used a ballistic program that accurately predicted the path of their pellet in real world testing? If so what program was it?


Darrell