For rifles chambered in 7mm cartridges, this bullet has the heavy, double-tapered Sierra jacket for hunting. The 150 grain Spitzer Boat Tail bullet is a little heavier and thus provides a high ballistic coefficient compared to the 140 grain bullet. It is an excellent choice as a lighter bullet in any of the 7mm magnum cartridges for use at medium to long ranges. Both bullets are superbly accurate and provide excellent expansion with good penetration on medium game at ranges to 500 yards.