US Army scoring/training isn't that hot TBH. We've continually cut back on the requirements for our riflemen, starting with the introduction of the draft in WWII (Can't take six months to train guys to hit out to 1km when you need them on the front in six weeks.) and continuing through the Vietnam War and the introduction of the M-16. If you're interested, there's a good white paper on it you can read here (PDF).
-O