Each individual should be responsible for their shooting, if you know you cant hit a target at 60yards you shouldn't be trying it, but if you can do it on paper (paper is a must first) then i cant see why you cant do it in the field, you shouldn't be testing your skills on live animals before practicing and knowing what your doing first.
I've seen the evidence that some shooters are more than capable of pulling off long range shots, i however will be leaving that to them until i am 100% sure the pellet will go exactly where i want it too
ATB
Adam