When Hargrove is shot with an arrow, the arrow is down closer to his chest, but when Major Adams goes to help, the arrow is more to the top of the man's shoulder.
Hargrove is shot by an arrow that's obviously near the top of his shoulder (see related Goof). The Major tells Bill that Hargrove is hit pretty bad. He doesn't think the arrow is in his lung, but it might be stuck in his ribs.