XTP's fall like a rock vs the plastic tip design but they will kill deer....
just have to allow for more bullet drop and less energy at maximum ranges but it is still a good bullet, just not the BEST.
Hornady ammo data has the 30/30 at :

150gr 300yards 1276 ft/lbs at .......... -29.6 inches
160gr 300yards 1699 ft/lbs at ............ -12 inches.