Ok iam standing about 10 feet away...I will try anything at this point...thanks for your reply...Ok you guys, from a long term pistolero -- the speed of sound is greater than the speed of these bullets, the result is the sound wave is kicking off the crono, either speed them up or mover much further back from the screens.
lots of experience in this and the stuff bout bullets/powder/crimp etc is a waste of time.
Bob