Propellants, Firearms, and Ammunition Development J. Allan Jones. “Module 03: Propellants, Firearms, and Ammunition Development.” Firearm Examiner Training, National Forensic Science Technology Center, projects.nfstc.org/firearms/module03/fir_m03.htm.
Propellants
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Modern Propellants
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Nitroglycerine
Benefits: stable when mixed with nitrocellulose, and didn't need anything else in the mixture
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Cordite: nitrocellulose, nitroglycerine, and petroleum jelly
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Firearms
Ignition Systems
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Percussion Cap: cups made of iron, pewter, or soft copper with fulminate
Rifled Barrels: grooves on the inside of a barrel in a spiral shape in order to stabilize the bullet
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Repeating Firearms
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Handguns: Colt's design the most successful in which the cylinder lock bolt and trigger were separate
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Ammunition
Cartridge Cases
Balloon-Head: forged rim instead of folding, like the folded head
Modern Developments: cartridge cases made of brass, steel, or aluminum
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Projectiles
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Jacketed
Benefits: kept bullet from melting, interacted better with rifling, and were able to fire bullets faster
Round
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Drawbacks: too light to maintain desired kinetic energy after firing, and the only way to fix was that was to make it bigger (less portable)