I have a new Browning a-bolt in 7mm-08. I am currently shooting 140 grain corelocks but I know a place that offers custom made ammo. Two that interest me are the 120 gr nosler ballistic tip and the 120 grain barnes x-bullet for the 7mm-08. Dropping to 120 gr should make this an even flatter shooting gun. Which of these two rounds would be best on Alabama sized whitetails. Would there be any percieved difference in felt recoil going to a bullet 20 grs lighter. Anyone have any experience with the X bullet or opinions of it as a whitetail killer.