To be a great shooter in basketball you need to have confidence, and one of the best ways to build confidence is repetition. It is not enough to go to the gym and put up half speed shots. You need to lock in and shoot game speed shots. This Boston Celtics basketball shooting drill is great because it puts pressure on the shooter to make a certain number of shots in a row, and under a set amount of time. Shooting is about conditioning the mind and body. This is a great shooting drill to do at the end of practice or basketball training because it will see what players are mentally strong and can hit shots when they are tired.