All your strings have pretty low SDs and Extreme spreads. Being subsonic with those (relatively) heavy bullets I bet they hang on to velocity pretty well too even if the flight is visibly parabolic.
Nice report but re: S1 I have not a clue. Strangely that string is also the worst for ES & SD.
Just thinking here but wwew the sky screens more subject to muzzle blast in the first string? If so the blast might have triggered the start screen before the bullet? Or maybe light conditions were significantly different for that string allowing the above to happen?
Those're my best guesses.
Commenting by HaloScan
