Crossbows, like nocks, are made to function with specified length bolts. They typically range in size from 16 to 22 inches, with the majority being between 20 and 22 inches. A longer bolt can be used in place of a shorter one (for example, a 20-inch bolt in a crossbow that generally uses a 16-inch bolt), but not vice versa. However, this can cause problems for your bow if you choose to do so. Longer bolts are needed for larger animals or for when you want to spread out the force over a greater area. For example, a hunter might use a longer bolt when shooting at large game such as deer or boars. The advantage is that the bolt will go farther, allowing them to stay beyond the reach of smaller prey or while still giving them enough penetration power. However, it is important to note that longer bolts are also harder to control. If you miss your target with a long bolt, it could hit another animal or person and cause injury. Also, keep in mind that these bolts are still made for crossbows, so they don't have any extra weighting on them that would help manage recoil. In conclusion, yes you can shoot longer bolts with a crossbow. However, there are consequences to doing so - more force, less accuracy, and increased risk of injury/accidental discharge.