Final answer:
To increase stability while sighting-in a crossbow, spread your feet to widen your base of support and bend your knees to lower your center of gravity, which is similar to a football player bracing for a tackle. Additionally, using a shooting stick or bench can further stabilize your position.
Step-by-step explanation:
When sighting-in a crossbow, having more stability is essential to achieve better accuracy. Greater stability can be achieved by increasing your base of support and lowering your center of gravity. If you’re standing, spreading your feet apart will provide a wider base of support. Moreover, slightly bending your knees brings your center of gravity closer to the ground, which further enhances stability, just as a football player does to prepare for a play. If possible, using support devices such as a shooting stick or a bench can significantly increase the stability by broadening the base of support beyond your body, akin to how a cane or walker stabilizes a person. Remember that a lower center of gravity is usually more stable, so adopting a crouched or seated position could also provide better stability while using a crossbow.