I took my 1st handgun deer this year with a 357 at 20-22 yds. You can cleanly take a deer, BUT you better be real picky with your shot selection and certainly be able to put the pill where it needs to be. Standing broadside in the open. And you should also be able to track some becuase it probably will run a short distance. At 15, can you be confident you can hold yourself to those requirements?