If Ontario hunting regulations don't forbid hunting with restricted class long guns, you could if the CFO would issue you an ATT to a place where you would hunt. And they actually could issue such an ATT if they wanted to, the constraint that we can only use our restricted guns doesn't come from a regulation as such, but a policy that the CFOs all decided to operate, that they will only issue ATTs to ranges. If CFO Ontario wants to tease you he can issue you an ATT to take a handgun hunting, and then you could take your pistol with you but you wouldn't actually be allowed to use it for your hunt because the hunting regulations forbid it.