We have a mini kill on our fixed course, it's actually 14mm not 15 as that is the only size cutter I had at the time, and it's on a tall post with a pivot. The pivot is about six feet off the ground, and the top half of the post with target on can easily be lowered for painting and other maintenance.
It's at less than 12 yards distance, that's all I'll say....
and here it is.
Camera position has shortened the perspective by the way..