Monday, September 13, 2010
Bullets (from Wikipedia)
A full metal jacket (or FMJ) is a bullet consisting of a soft core (usually made of lead) encased in a shell of harder metal, such as gilding metal, cupronickel or less commonly a steel alloy. This shell can extend around all of the bullet, or often just the front and sides with the rear left as exposed lead.
Full metal jacketed bullets have different properties, both in terms of behavior inside the barrel of the gun and also in flight. Whereas hollow point and soft-tipped bullets are designed to expand upon impact, full metal jacket bullets are limited in their capacity to expand. In some cases this leads to decreased target damage, although not in all instances. For example, the 5.56x45 NATO round used in the M16/M4 family of firearms tends to tumble vertically upon impact, creating a massive cavity.
A hollow point is an expanding bullet that has a pit or hollowed out shape in its tip, generally intended to cause the bullet to expand upon entering a target in order to decrease penetration and disrupt more tissue as it travels through the target. It is also used for controlled penetration, where over-penetration could cause collateral damage (such as on an airplane). In essence, the hollow point bullet has two interrelated purposes: to increase its size once within the target, thus maximizing tissue damage and blood loss or shock, and by remaining in the target to expend all of its kinetic energy in the target, some of which will be lost if the bullet continues through the target.
Tell me again how "normal" the gun advocates are, the guys who seriously consider such things as "collateral damage" and ways to "disrupt more tissue as it travels through the target."
Tell me again about the reasonable folks who study such things as which bullets tend "to tumble vertically upon impact, creating a massive cavity."
Please leave a comment.