Pro tip: No need to be
By itself, bowling a strike isn’t all that hard. Most amateur bowlers end up doing it by accident at least once a game. What makes a great bowler is the ability to bowl a strike consistently, which comes from hours of practice, great technique, and a few insider tips to get you started.
First, don’t go for the heaviest ball imaginable. It’s uncomfortable and less effective. Heavy balls hit pins up and out of the way while lighter balls spend more of their time banging around, causing the type of havoc that results in a strike.
(via Art of Manliness)