Ballistics and Firearms Warm-up

1

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

There are 4 types of firearms. Drag and drop each description into its appropriate category.

firearms with longer barrels that possess greater range and accuracy
firearms designed to be held in one hand, easy to carry, and easy to conceal
similar to rifles, but the inside of the barrels are smooth, and the cartridges contains small spherical pellets called "shot"
a firearm that propels pellets through air, spring compression, or a carbon dioxide cartridge
a 6-cylinder firearm that must be reloaded by hand and does not eject a spent shell

handguns
rifles
shotguns
Air guns

1.5

Select all of the following that are true about the following firearm:

1.5

Categorize the bullets as left twist or right twist.

LEFT
RIGHT

1

"9 mm Luger" is the ________ imprinted on the cartridge.

1

Label the cartridge casings as centerfire or rimfire.

Summarize Locard's Exchange Principle and discuss how it applies to gunshot residue and GSR testing.

1

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

1

What is a diphenylamine test and what are 2 substances that can trigger a positive test result?

1

Examine the following bullet and note its dimensions:
- 6 lands/grooves
- cut rifling
- groove width = 0.072 inches
- land width = 0.147 inches

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

1

Examine the following bullet and note its dimensions:
- 6 lands/grooves
- cut rifling
- groove width = 0.058 - 0.071 inches
- land width = 0.161 - 0.165 inches

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

2

In this example, a projectile is fired from a BB rifle at a velocity (speed) of 600 ft/sec.

How many seconds after the projectile is fired will it take to reach the target?
_______ seconds

Calculate the vertical distance dropped by the projectile while it is airborne.
_______ feet

1

2 more BB rifles are test fired with the following velocities:

BB1(original): 600 ft/sec
BB2: 700 ft/sec
BB3: 800 ft/sec

Which of the BB rifles' bullets will fall the most during the initial 0.2 seconds?

__________

1

Calculate the height of the shooter given the above scenario.
_______ feet (round to the nearest whole number) 

There are 4 types of firearms. Drag and drop each description into its appropriate category.

Select all of the following that are true about the following firearm:

Categorize the bullets as left twist or right twist.

"9 mm Luger" is the ________ imprinted on the cartridge.

Which of the following elements are commonly found in ammunition primers?

Summarize Locard's Exchange Principle and discuss how it applies to gunshot residue and GSR testing.

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

What is a diphenylamine test and what are 2 substances that can trigger a positive test result?

Examine the following bullet and note its dimensions:- 6 lands/grooves- cut rifling- groove width = 0.072 inches- land width = 0.147 inchesCheck the "show your work" section and select all of the possible firearm manufacturers from the list below:

Examine the following bullet and note its dimensions:- 6 lands/grooves- cut rifling- groove width = 0.058 - 0.071 inches- land width = 0.161 - 0.165 inchesCheck the "show your work" section and select all of the possible firearm manufacturers from the list below:

Examine the following bullet and note its dimensions:
- 6 lands/grooves
- cut rifling
- groove width = 0.072 inches
- land width = 0.147 inches

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

Examine the following bullet and note its dimensions:
- 6 lands/grooves
- cut rifling
- groove width = 0.058 - 0.071 inches
- land width = 0.161 - 0.165 inches

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