Question 1

If you stand a bullet up on its base and view the lands and grooves from the side, and the direction of the lands/grooves slant to the right this is a right-hand twist bullet. With a right-hand twist which direction will the bullet rotate in space?

Accepted Answer

In a right-hand twist barrel, the lands and grooves make the bullet spin clockwise when viewed from the shooter's perspective looking downrange. Therefore, the bullet will rotate in space clockwise.

Question 2

If you stand a bullet up on its base and view the lands and grooves from the side, and the direction of the lands/grooves slant to the left this is a left-hand twist bullet. With a left-hand twist which direction will the bullet rotate in space?

Accepted Answer

Left-hand twist bullets rotate counterclockwise in space.

Question 3

A bullet has a marking on the shell casing that id embossed with the number 22 caliber. What does this mean?

Accepted Answer

Caliber is often used to describe the diameter of a bullet or the bore diameter of a firearm. In this case, the marking on the shell casing that is embossed with "22 caliber" means that the diameter of the bullet is 0.22 inches.

Question 4

What does the phrase 44 magnum mean?

Accepted Answer

The phrase "44 magnum" refers to the diameter of the bullet. Specifically, it refers to a .44 inch diameter bullet, which is used in firearms chambered for the .44 Magnum cartridge. The other options are not accurate descriptions of what the phrase means.

Question 5

An instrument used to measure dimensions of a bullet or shell casing is

Accepted Answer

A caliper is the instrument used to measure the dimensions of a bullet or shell casing. A caliper can measure thickness, diameter, and length accurately. A comparison microscope is used to examine and compare two objects side by side, while a compound microscope is used to see small details of a specimen. A compass is a tool used to draw circles or arcs, and a protractor measures angles.

Question 6

You are a firearms expert asked to process a spent bullet, shell casing, and a firearm recovered from a crime scene. Describe the procedure and instruments you would use to determine if the three items are connected to each other.

Accepted Answer

The answer of You are a firearms expert asked to...

Quiz 8: Ballistics