Hunting on someone else's property without permission is generally considered trespassing, which is illegal in most jurisdictions, including Georgia. In order to hunt legally, you must have the landowner's explicit permission or be hunting on property where you have legal rights or licenses to do so.
As for liability, if someone hunts on a private property without permission and causes injury or harm, the landowner may not be liable for the actions of the trespasser, as the trespasser is committing an illegal act. However, landowners do have a general duty to keep their property reasonably safe. Georgia law does provide some protections to landowners from liability for injuries to trespassers, but the specifics can depend on the circumstances.
It's always advisable to obtain permission before hunting on any land and to be aware of local hunting laws and regulations. If you have specific legal questions or concerns, it's a good idea to consult with a legal professional or local authorities.