With a decent driver and decent ball, most young(ish) guys are more than capable of generating the club head speed needed to drive 300+. The problem is many get sloppy if they swing as hard as they can and they make poor contact, killing their distance of sending the ball screaming into the next fairway (or 2). If you can get consistent contact with a full, 100% swing, 300yds is well within reach for even occasional golfers (I play 5-7 times/year at most).
