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Unit 3

1
2
3
4
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7
8
9
10
11
12
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14
15
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19
20
21
22
23
Across
3
Parallel sets if scratches on a bullet caused by unique markings in the bore of a rifled weapon
6
A container that holds cartridges under spring pressure to be fed into the gun's chamber; also called a clip
7
A color test for the presence of nitrite in gunpowder residue
8
A single or bullet in a shotgun shell
11
The interior of a shotgun barrel
12
Basic units of weight in the British system
16
A color test fir the presence of lead in gunshot residue
17
The interior diameter if a gun barrel
18
Hooked or crescent-shaped part attached to the breechblock
20
A solution containing either a weak acid and its salt
22
The part in the firearm whose function is to throw a spent casing from the gun after firing
23
The diameter if the bore of a firearm
Down
1
Gunshot residue consisting of burned and unburned powder
2
The bore of a gun barrel that has been machined to form a grooved spiral, much like a helix
4
Grooves around a bullet that provide a means of crimping the cartridge case to the bullet
5
The raised areas between two grooves in the rifling of a gun barrel that impart grooves in the bullet
7
A manner of walking or moving on foot
8
Distance from the centerline of the right tire to the centerline of the left tire
9
Numerals, letters, and symbols on the base of a cartridge
10
Spiral cuts into the bore of a barrel that give the bullet its spin or rotation as it moves down the barrel
13
Lead spheres in a shotgun shell
14
Part of the firearm that contains a cartridge for firing
15
Distance from center of front wheel hun to center of rear wheel
19
The outer soles of shoes that are the bottom of the shoe, in contact with the ground
21
Portion of the gun that contains the firing mechanism