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Biblioteka

Firearms and Ballistics Biweekly Check-in

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Posljednje ažuriranje about 1 year ago
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Pitanje 1
1.

The spiral pattern cut into the bore consists of raised areas called __________ and depressions called __________.

Pitanje 2
2.

Drag and drop the terms onto the image to label the schematic of a bullet.

Drugi mogući odgovor:
primer
propellant
extracting groove
copper jacket
lead core
brass cartridge case
Pitanje 3
3.

Explain why GSR cannot be used to connect a suspect to a weapon used in commission of a crime.

Pitanje 4
4.
Pitanje 5
5.
Pitanje 6
6.

Pitanje 7
7.

Count how many lands/grooves are shown on each barrel cross-section!

Drugi mogući odgovor:
8
1
6
4
3
7
5
9
2
Pitanje 8
8.
Pitanje 9
9.

Categorize the following breechface impression!

Pitanje 10
10.

Categorize the bullets as left twist or right twist.

  • LEFT

  • RIGHT

Pitanje 11
11.

Label the cartridge casings as centerfire or rimfire.

Drugi mogući odgovor:
rimfire
centerfire

Examine the following bullet and note its dimensions:

- 6 lands/grooves

- cut rifling

- groove width = 0.037 - 0.041 inches

- land width = 0.188 - 0.190 inches

Check the "show your work" section and select all of the possible firearm manufacturers from the list below: