In Pa you will have to have a Doctors note stating that you are incapable of drawing back a bow to be able to use crossbow during archery. You can however still use it during gun or mussleloader seasons but you may not use one during regular archery unless you have that note...You will need to file that with the PGC and get a "disabled" permit to utilize a crossbow during archery. Many states are like that and many arent. If memory serves its around 50/50 between those that allow crossbow during archery and those that require a dissability.
"Crossbows shall not be considered a long bow, recurve bow, or a compound bow. Permanently disabled persons in possession of an archery permit may use crossbows or locking draws while hunting deer, as permitted under KAR 115- 18-7, by application and special permit. Optical scopes or sights that project no visible light toward the target and do not electronically amplify visible or infrared light may be used."
Others have offered up a sighting of roughly 2 inches high at 100 yards as a good sighting scheme. In my own experience I have come to favor a sighting of 3.5 inches high at 100 yards. This allows for the individual to hold dead-on (directly in the middle of the top and bottom) the animal out to roughly 350 yards.
Magnum calibers such as the 7mm Remington and 300 Winchester will extend this slightly. At 400 yards I hold directly on the backbone of the animal. The drop at this range allows the...