Marijn said:
22's are indeed more damaging.
However this is mostly when someone is hit in the head.
Its even so that you stand a better chance of suviving being shot through the head with a 40 than with a 22, a 22 bounces around bcause it lacs the power to exit the skull.
However the biggest damage done by a bullit isn't the hole it makes when passing through your body.
The "advantages" of an expanding large call (e.g. 38 and up) bullit is the fact it carries more energy than a 22, and it transfers it very rapidly to the surrounding sissue.
Thus destroing all the tissue around it because of the shockwave.
A small bullit and shot, although they move around in the body, create far less damage due to their low energy.
Take two bullits of the same call.
Say 40 cal, one beeing a normal fmj, it tears a hole through a person, only doing (relatively) minor shock damage.
Now take an expanding 40 cal (of whatever type, you have the standard hollowpoint, but there are far more advanced expanding munitions) the round penetrates the skin, expands and transfers all its energy to the surrounding tissue.
If it has power enough it will leave the body while transferring energy, resulting in a baseball sized exit wound.
The damage in the soft tissue however would be as big as an basketball, completely tearing apart the victims inside.
Coating on 22's would be a good idea, 22 hits on the body are more likely survivable than a 40 cal (whitch would exit the body annyway so there wouldn't be any lead left in the body).
On expanding bullits is useless, on the one hand the coating would probably not survive the expanding, and the victim won't probably'either.
Last note, in general the body will encapsulate the bullit should it remain in the body.
As long as it remains encapsulated it's no more harmfull as a coated bullit.
Only when the encapsulation is broken, or the round comes in contact with (acidious) fluids lead will come into the bloodstream.
Probably a bit late in coming, but...
A 22 (sic) does not bounce around inside of a human being's skull after initial penetration. This is an absolute myth that has been perpetuated by novelists, motion pictures, and assassin wannabes. It's right up there with "a revolver can't be suppressed."
Depending on many factors (bullet material, mass, velocity, design, et cetera) a bullet from a .22LR round will either pass completely through the brain and both sides of the skull, travel straight through the brain and stop on contacting the opposite interior side of the skull, yaw after penetrating the skull and stop on contact with some portion of the interior skull, or stop after passing only partway through the brain. No one has never produced any scientific evidence to demonstrate that a bullet from any type of .22LR round fired from any sort of firearm will ricochet within the skull. They simply lose energy too quickly after traveling through that medium to produce that phenomenon. Nevertheless, a solid headshot with a .22LR is fatal.
Wounds inflicted with lesser .22 rimfire rounds, such as the .22S, are generally not fatal, although they can be permanently debilitating if the bullet manages to penetrate the skull and damage the brain. However, with such low velocity and bullet mass, this rarely occurs.
A solid headshot with a .40S&W is instantly fatal.
A high-velocity .22 hollow point bullet like that of the .223 Remington (5.56x45mm) creates a devastating wound channel that is disproportionate to its caliber, despite claims to the contrary. This is due to the synergy of temporary cavity stretch of the soft tissue and projectile fragmentation. The damage is quite horrific.
I have never seen an exit wound from a .40S&W that is the size of a baseball.
"Stopping power" is an unquantifiable misnomer, in the same league as "knockdown power" and "killing power". As far as the science of terminal ballistics of small arms ammunition is concerned, there is no such thing.
The LeMas Ltd. blended metal bullets are made by sintering. The resultant projectile is solid-cored with a copper jacket to engage the rifling. Upon penetration of a live target, the temperature and pressure of living tissue initiates a deflagration of the bullet core, which burns the victim alive from the inside.
The biggest problem I have with LeMas Ltd. is that they continue to test this stuff on live animals, especially when there are so many Scott Petersons and Charles Mansons available for that honor.
The second biggest problem I have is that they won't sell me any of this stuff.
With all that said, would any of you scientific types care to speculate about the possible combination of metals that would go into such a beast (I've heard magnesium and aluminum are part of the mix) and suggest some practical resources for we laymen on the sintering process?