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Photo of synthetic ballistic gelatin showing terminal fragmentation of a .243 projectile. Ballistic gelatin is a testing medium designed to simulate the effects of bullet wounds in animal muscle tissue. It was developed and improved by Martin Fackler and others in the field of wound ballistics. It is calibrated to match pig muscle, which is ...
Gelignite (/ ˈ dʒ ɛ l ɪ ɡ n aɪ t /), also known as blasting gelatin or simply "jelly", is an explosive material consisting of collodion-cotton (a type of nitrocellulose or guncotton) dissolved in either nitroglycerine or nitroglycol and mixed with wood pulp and saltpetre (sodium nitrate or potassium nitrate).
A 10-inch barrel revolver chambered for the cartridge is capable of penetrating 103 inches of 10% Clear Ballistics gel. A 24-inch barrel rifle chambered for the round can penetrate 127 inches of the same medium. [7] A 14-inch .500 Bushwhacker revolver can exceed 3,000 ft/s (914.4 m/s) with select loads. [7]
The .40 Super cartridge case was designed for a balance of strength and powder capacity. To maximize bullet pull and overall feeding characteristics, the case has a neck length of .175 in. The shoulder angle is an optimum 25 degrees. The neck yields more precise bullet alignment than can be achieved using a cartridge with a shorter neck.
If ballistic gelatin is calibrated by verifying that a BB shot at normal BB gun speeds penetrates 8.5 cm into the gel, noting that a BB shot at a human normally doesn't even pierce the skin, how can ballistics gelatin be said to "closely simulates the density, viscosity and electrical resistance of human and animal muscle tissue" as claimed in the article?
The ballistics of the .950 JDJ are more similar to that of the 20 mm autocannon round, which delivers approximately 39,500 foot-pounds force (53,600 joules). The muzzle energy of the .950 JDJ is comparable to the kinetic energy of a 2,800 pounds (1,300 kilograms) automobile traveling at 20 miles per hour (32 kilometres per hour).
There has been much debate regarding the bullet's unreliable expansion when fired through clothing or media other than ballistic gelatin. The bullet typically displays very rapid expansion, resulting in a larger but more shallow wound channel than would be typical from most other bullet configurations in the same caliber and of similar weight.
The SPD denied her claims, alleging that tests show that a blast ball detonated at contact range against ballistic gel fails to produce trauma or tearing. [3] In 2020, a judge found the SPD in contempt for frequent use of blast balls while attempting to quell the George Floyd protests in Seattle , finding that they were used "when no immediate ...