Suppose your scope could calculate and display your hit likelihood in the vitals of a deer based on distance and the accuracy of your gun/ammo system.
I'd get a new scope.
Seriously, it would depend on the situation, but I'd try to keep it around 90.
I wonder what sort of confidence level people expect from their hunting rifles. 100%, 95%, 75%, 50%? At what point would people take pass?
Someone undoubtedly already said this, but it's not confidence in the rifle that's the most important variable in this equation.
