Where to shoot em with 00bu

I have a browning silver shotgun with the 28 inch barrel with the extra full choke. have killed them over 100 yards (I'm sure more luck than anything else). I shoot federal premium 00 buckshot. why mess with a good thing??
I shoot em where I can, and then shoot them again as quickly as I can, you wanna hit em where you break some bones, I load. My own 4buck and 00,