The serving string of a crossbow is typically 4 inches long and securely twisted around the string. Its role is to shield the string from the arrow retention claws, which keep the string cocked. When the bow is shot, the serving also makes contact with and rides the crossbow's rail. This moves it away from the shooter's face, where it could be injured by flying debris or broken glass. Crossbows are designed to shoot one-and-a-half times their length. So, if your crossbow shoots bolts that are three inches long, then you should shoot them about 9 feet away. You need to adjust your shooting position based on this distance. If you stand too close, you will not have enough room to safely shoot the bolt. If you stay too far away, you will not be able to generate enough force to release the trigger. Find a balance that works for you. When shooting at targets, always aim just above where you're standing. This gives you more room to move if the target moves before you can shoot it. Shooting serves as an effective way to loosen up before a big match or event. You should try to hit at least one target every time you shoot to maintain good form. This will help you deliver every bolt with maximum power.