Hornady American Whitetail 30-06 Springfield 150gr SP ammo is loaded with Hornady's legendary InterLock bullet, these American Whitetail cartridges are a great combination of ballistics and modern components. Hornady American Whitetail 30-06 Springfield rounds use select propellants that provide consistent accuracy and performance. This optimized load is tailored specifically for deer hunting and has been a favorite for decades. The InterLock Ring, a Hornady exclusive, ensures that the hard-alloyed lead core and tapered jacket remain locked together during expansion. These quality centerfire rounds are brass-cased, boxer-primed, non-corrosive and re-loadable.