Worksheets330 Week 4 Firearms
Total questions: 8
Worksheet time: 3mins
Shotguns have rifling in the bore of the barrel
True
False
A revolver uses the build up of gasses to rotate the cylinder for the next shot.
True
False
The purpose of a choke in a shotgun is to create a tighter shot pattern.
True
False
This part of the chamber rubs against the headstamp of a cartridge case.
firing pin
extractor
ejector
breech face
The spiral grooves inside the barrel that make the bullet spin when fired is called:
caliber
bore
rifling
lands
Which is NOT one of the three elements an SEM searches for in GSR evidence?
Lead
Antimony
Copper
Barium
What does it mean to scribe a revolver?
Note which cylinder was in line with the barrel
Note which ammunition was in each cylinder
Note the position of the hammer
Note if the gun was loaded or unloaded
Which is NOT a class characteristic of a firearm?
Rifling method
Number of lands and grooves
Rate of twist
Striations in the bore
