wanted to know if there were any ammo with enough power to be a back up gun for defense.Of course the debate never ends,most people say a .22 will just make someone mad,but the fbi charts show 29% one shot stop with a .22,and with 9 shots with no recoil,might make it a viable weapon.I been using federal walmart= 77 fpe,the cci stinger is the best at 119 fpe.Ill still stick with my .357 for defense,but I was just curiouse.