Last time I went shooting I was practising PPC, so I shot a PPC course of fire with the M4 - that would actually make a fun sport. You could stretch the ranges out a bit, but still have a Black Rifle course of fire that could be shot on the majority of ranges (go to say 200 yards). I'd love to try service rifle, but the nearest range that's long enough is a bit of a distance to drive. I know I'm not the only one with a short range.