BCB,
'Preciate it!

Puncher,
0.6818181 (irrational), but your .68 is close enough!!!...BCB

I got curious about converting FPS to MPH. Can I get somebody to check behind me on this, please? I came up with FPS X .68 = MPH.

Your not gonna go buy one of the surplus SR70 spyplanes and see if it really does fly as fast as a 30-06 bullet ARE YOU???