I will guarantee for a fact that measuring those shots with labradar you will see much lower velocity. All they are measuring is air blast over the chrony and getting false readings. I have seen this same thing and measured "6000fpe" shots with the chrony too close, and too close meaning 1 meter from the muzzle is too close. Then we started to use the radar to get real world results and accurate readings.Give him my regards,Measure with ballistic radar I dare you! Marko