Here in NH it states that air guns can be used for small game but not deer bear or turkey. In waterfowl it just says shotguns not larger than 10 gauge or bow and arrow. I agree with the idea of contacting to see what is commonly interpreted
I appreciate all of the input, I normally use a 28 gauge and shoot 5/8 to an ounce loads including tss and bismuth. I think I’ll do some load/pattern/lethality testing if I do pick up a pcp