Watched you youtube vid on it last night. Very informative.
You mentioned that 200m is the limit of the 9mm ballistic performance which is why you were getting the wide spread. Would shooting through the MP5 for instance have got better results?
Yes, cos closed bolt so no schlunking before it goes bang, which mitigates that part of it. But 9x19 is really running out of legs by 200m accuracy-wise, which is why the group was more than twice as big as at 100m.