Margin: Margin can be used up, again a bullet designed for penetration without upsetting would be a very bad choice when a shooter wants to be forgiven when SWHUA (shooting while head up donkey). The North Texas smith had little interest in speculation as to how long the bullet was when it exited the barrel, but, for those that believe the bullet was swaged into the neck, forcing cone and rifling can not get their minds around the fact the bullet was not being pulled from the front, but being pushed from the rear, meaning the soft bullet turned inside out from the the rear, again, a better bullet would have resulted in a better results, or more destructive results. When purchasing ammo for a rifle, and there is doubt about the chamber, do not purchase solids.
F. Guffey