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forensics ch 9
vocab
| Question | Answer |
|---|---|
| firearms identification | discipline primarily concerned with determining whether a bullet or cartridge was fired by a particular weapon |
| grooves | cut or low-lying portions between lands in a rifled bore |
| bore | interior of a firearm barrel |
| riling | spiral grooves formed in the bore of a firearm barrel that import spin to the projectile when its fired |
| lands | raised portion between the grooves in a rifled bore |
| caliber | diameter of the bore of a rifled firearm, usually expressed in hundredths of a inch or millimetres |
| gauge | size designation of a shotgun originally the # of lead balls with same diameter as the barrel that would make a pond |
| breech face mask | rear part if a firearm barrel |
| extractor | mechanism in a firearm that withdraws the cartridge of fired case from the firearm |
| ejector | mechanism in a firearm that throws the cartridge or fired case form the firearm |
| distance determination | process determining distance between firearm and target based on the distribution of powder patterns or the spread of a shot pattern |
| choke | interior constriction placed at muzzle end of a shotguns barrel to control shot dispersion |
| greiss test | chemical test used to examine patterns of gunpowder residues around bullet holes |
Created by:
ali.clare30