Cuz its a very unethical load and results in alot of deer suffering because people take to many shots with it when deer aren't close enough for it to kill them. I would think you would not want to use this considering you don't like to see animals suffer. IMO buckshot shouldnt be allowed for deer anywhere. Slugs work way better for deer, close or far. Buckshot is for yotes and hog control IMO. WCL