So if we pick the highest SD bullet IE a given weight for caliber, lets say 200 grains in 30 cal. Then whether its a hollow point, plastic tip, premium, regular or fmj design they'll all penetrate the same and out penetrate a bullet with a lower SD.
Greater SD doesn't always mean greater penetration, especially with the better bullets.
I would count on a 150 X-bullet in an 06 to penetrate a heap more than a 165 grain Sierra Gameking.
