It utterly outperforms the old style optical and magnetic chronographs. No more shooting through a narrow hole. No more magneto speed ruining your groups and point of impact. Yes, you can finally reliably test for group size and MV/SD at the same time. You have now halved your load development time.
In a nutshell, it uses a microwave Doppler RADAR to track the bullet from your muzzle on downrange to the target. It produces all the usual data but at extreme accuracy and reliability and under any conditions.
We have a special on as well - have a look