5.7x28mm Speed Challenge: SS192, SS198LF, Elite Ammunition's S4M, FiveSeveN

My Channel: http://www.youtube.com/user/BuffmanLT1

So which is the fastest? Clear winner, EA's S4M. It seems my chrono reads on the low side on small diameter, high velocity bullets. I know SS192 and SS198LF is faster than what my chrono reads, especially S4M.

Test Gun: FNH FiveSeven, 4.75" barrel
Chronograph: ProChrono Pal
Test Taken: 10 Feet

Weather:
Temperature: 87*F
Humidity: 33%
Baro: 29.99"
Dew Point: 53.1*F

All shots are in feet per second (fps)
SS192: #1: 2,041 ; #2: 2,017
SS198LF #2: 2,103
EA's S4M #1: 2,389 ; #2: 2,385