Sharpshooter is by Chris Lynch. The second book in the Vietnam series. Ivan is the only one of his friends who is excited about going to Vietnam. He has protected his friends and will now protect his country. He enlists in the Army and becomes a sniper. Now he's "in country" and must come face to face with the reality of war.
Ratings: 7th grade - 8 out of 10 - V (violence).