This thread made me to measure the zero circle on a M16A2 zero target, which is 1 5/8s outside to outside measured on the Horizontal center line, and just slighty larger Vertical.
Im going to suggest that the FTU folks do this exercise as an opening to the DM course they teach. Makes a whole lot of sense to do this, instead of just scoring in the top (95%?) on the M4 qual.
Now its off to the range, Thanks for giving me something to do other than eat a greasy burger at lunch
