You're going to have a lot harder time getting a spring gun to group well than a PCP. In my opinion, this difficulty tends to increase as you get increasingly powerful spring guns, as you have that much more mass moving that much more aggressively inside it. If the name of the game is hunting, there may be something to be said for larger and more powerful calibers, however I personally would be more inclined toward a nice Weilrauch HW97 or Air Arms TX200 or if you really want/need power maybe an RWS54. I just quite frankly wouldn't expect the Hatsan to group well enough at 75 yards to either be useful for hunting small enough game to ethically kill at that range or to be fun to plink with.
just my 2c.