Welcome back.
Fellow B4, hm? When did you go down to the school house? Class 04-06 here. A Lapua? Only 4 rifles I shot during my time active, including Iraq; M24 (Remington 700), M107 (Barret .50), M4, and M110 (SASS, which I was the first to field and fire in my battalion).
So when you took that 2500 yard shot (2 miles) when did your spotter lose the trace and how far off (in hundreds of meters, because we use metric in the Army and convert to yards only with very specific optics, e.g. the M3A, PVS 10, etc) were you?