I agree with SR, the term "shooter" not only changes from state to state, but I would say from timber to timber.
Our "honey hole" spot for instance; a shooter is considered 130"+
, even there it is hard to shoot a 130" because of the potential of even bigger deer (as is the case with "McNasticus" and others who consistently push upper 150's-lower 170's)
Another property we have a 130" is a huge deer and consistent 100-120's are taken (it is fairly new to the management process, hopefully it gets better! ;-) ).
For the most part I just try to make sure they are more than 2 years old and have bone wider and taller than their ears; that to me is a shooter.