Sighting in your Crossbow
The most popular sighting system used on crossbows today is the multi-reticle scope. For this reason we will focus our attention on how to properly sight in your crossbow using this optic. Assuming that you have a basic understanding of how to handle a crossbow, sighting it in is a very easy process.
Typical view through a multi-reticle scope.
First, close your eyes and shoulder the crossbow. Once the crossbow is comfortably shouldered open your eyes. You should now have a clear plane of sight throughout the entire scope. Never move your head to attain a better sight picture. If you don't have a clear sight plane through the scope, and instead have a dark or blurred view, the scope itself needs to be adjusted to find your proper eye relief. Most of today's crossbow scopes have a 3- to 5-inch eye relief range.
Using the supplied tool that came with your scope, loosen up the screws on the two scope rings. (These are the two rings that encompass the scope and attach it to the scope rail.) After loosening the rings, slide the scope slightly forward or backward. Close your eyes and shoulder the crossbow again. Depending upon the sight plane, continue to adjust the scope, either forward or backward, until complete clarity is achieved every time you shoulder the crossbow. Once this is accomplished, tighten down the scope rings.