Randy - be careful with the PHD line -
My Dad had a PHD - he said it really means "Piled High and Deep. He was too refined to suggest what was piled too high ...
Randy is a good and thorough practical engineer and his adaptation of the MagnetoSpeed bayonet mount will work the way he wants it to work sooner or later. I have two MagnetoSpeed chronographs and some of my rifles show group displacement and a change in group size when the bayonet is strapped...
What Randy said. My experiences (lots) with Magnetospeed are exactly the same as he reports. I appreciate the work he did and is doing to provide fact based information instead of half-***'d opinions.