Take your best rifle (Don't have one? Get one.), go to the range, and make sure you can put holes in a 10" circle at 300 yards...consistently. Take your teenage sons and daughters, too. Eight weeks in boot is not enough time to develop the ability to shoot straight. Soldiers who can't shoot accurately are but cannon fodder. While your coaching, give them a history lesson--the one they didn't get in school.
Then clean that rifle and rest.