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Positive material identification (PMI) is the analysis of a material, this can be any material but is generally used for the analysis of metallic alloy to establish composition by reading the quantities by percentage of its constituent elements. Typical methods for PMI include X-ray fluorescence (XRF) and optical emission spectrometry (OES). [1]
t. e. Forensic firearm examination is the forensic process of examining the characteristics of firearms or bullets left behind at a crime scene. Specialists in this field try to link bullets to weapons and weapons to individuals. They can raise and record obliterated serial numbers in an attempt to find the registered owner of a weapon and look ...
Gunshot residue ( GSR ), also known as cartridge discharge residue ( CDR ), gunfire residue ( GFR ), or firearm discharge residue ( FDR ), consists of all of the particles that are expelled from the muzzle of a gun following the discharge of a bullet. It is principally composed of burnt and unburnt particles from the explosive primer, the ...
Colt Cobra. The Colt Cobra is a lightweight, aluminum-framed, double-action short-barrelled revolver, not to be confused with the Colt King Cobra. The Cobra was chambered in .38 Special, .38 Colt New Police, .32 Colt New Police, and .22 Long Rifle. It holds six shots of ammunition and was sold by Colt from 1950 until 1981. [1]
Primer (firearms) In firearms and artillery, the primer ( / ˈpraɪmər /) is the chemical and/or device responsible for initiating the propellant combustion that will propel the projectiles out of the gun barrel . In early black powder guns such as muzzleloaders, the primer was essentially the same chemical as the main propellant (albeit ...
Battle rifle: A service rifle capable of semi-automatic or fully automatic fire of a full-power rifle cartridge. Bayonet lug: An attachment point at the muzzle end of a long gun for a bayonet. Belt: An ammunition belt is a device used to retain and feed cartridges into some machine guns in place of a magazine.
The PPSh-41 fires the standard Soviet pistol and submachine gun cartridge, the 7.62×25mm Tokarev. Weighing approximately 12 pounds (5.45 kg) with a loaded 71-round drum and 9.5 pounds (4.32 kg) with a loaded 35-round box magazine. The PPSh is capable of a rate of about 1250 rounds per minute, [27] a very high rate of fire in comparison to most ...
Spark testing is a method of determining the general classification of ferrous materials. It normally entails taking a piece of metal, usually scrap, and applying it to a grinding wheel in order to observe the sparks emitted. [1] These sparks can be compared to a chart or to sparks from a known test sample to determine the classification.