The bear WILL be back in 7 to 10 days. At least that is the way it is around here. Do not think you can run it off with a pellet or paint ball gun, they are hungry and will fight for any food they can find. A shot gun with slugs or buck shot will work, but a 30/06 works better. If you see it put it down or you will be putting your family at risk. If it tore the door off the coop, it can do the same to the door on your house. If you don't eat it, bury it deep. Do not tell anyone about it, this is the SSS rule. 49 years ago when I left N J we killed to bears on my Grandfathers farm in Middlesex County. From relatives and friends I hear they are worst now. One killed a pair of poddles on my sister's place in Skillmen a couple of years ago. Her neighbors only saw it twice after that and she won't even tell me if she shot it. She may be an old lady now, but growing up she could out shoot most boys in town.