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Many of us would probably agree that .45 ACP FMJ will work with one shot 6 or 7 times out of 10.

If one .45 ACP FMJ doesn't work, just shoot twice.
 

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Re: 2 reasons, to see what ccw loads REALLY

223 fan said:
Small critters, hit with fairly powerful, fairly fast jhp's, will have their organs damaged by the shock wave, beyond where the bullet actually touched, the same way a quart can of water will be blown apart by such a bullet. However, when you shoot a 5 gallon bucket of water with such a load, nothing of the kind happens. It takes a LOT more energy being transmitted in order to have the same shock effect, on a larger animal.
It's not a shock wave that causes a water filled can to rupture. The speed of sound in body tissues is about 4800 fps. Besides, by definition, shock waves are waves that occur in compressable fluids, like air. Water is, for all practical purposes, incompressable.

When the bullet enters the water in the can, pressure is created by the nose of the bullet pushing through the water. Pressure in a fluid acts in all directions. Because water is incompressable, it pushes outward on the can too. If the pressure is high enough, the can ruptures. Simple.

Your water filled can analogy is true if you are comparing it to a brain in a skull. However, skin and most body tisuues are rather elastic. A high velocity bullet that creates a horrible head wound will not create the same wound in a thigh muscle. Nor will an injury caused by high velocity in a small animal necessarily occur in a large animal.

For example:

A .223 bullet may rip a gopher into pieces, but it does not rip a deer into pieces.
 

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I've shot deer, nutria and many beaver with .223's before, so I know exactly what they will do.

The .223 Rem is very good, but it won't vaporize large deer, drop elephants with single shots or down passing Chinese satelites.
 
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