MMSC240 final

What three areas are involved in trajectory analysis?

Internal ballistics, External ballistics, Terminal ballistics.

What is the effect of increasing bullet velocity compared to increasing bullet mass?

Increases in bullet velocity have a greater effect on kinetic energy (KE) than increases in bullet mass.

Define close contact range in firearms terminology.

Close contact range is when the firearm is pressed to the skin.

What marks on the skin can indicate an entrance wound?

Unburned gunpowder, tattooing/stippling, and characteristic markings.

What characterizes exit wounds in comparison to entrance wounds?

The size does not differentiate, but the configuration does.

What are the four parts of a cartridge?

Cartridge case, Primer, Powder charge, Bullet/projectile.

What is a terminus in firearms terminology?

The final resting place where the projectile ends up after its flight path.

What is meant by perforation defect?

Perforation defect refers to going through something.

What does a trajectory kit include?

Trajectory rods, centering guides, angle finders, protractors, and sometimes lasers.

What distinguishes closer exit holes in glass from entrance holes?

A projectile hole is wider at the exit side.

What is a muzzle contusion?

A localized injury caused by the muzzle of a firearm making contact with the skin.

What is the definition of terminal ballistics?

The study of the behavior of the bullet when it impacts the target surface or body, including associated damage.

What does 'successive penetrations' refer to in the context of trajectory analysis?

A fracture always terminates at an existing line of fracture.

What is the range for intermediate range shooting?

Intermediate range is defined as 5 to 40 inches from the wound.

What is the significance of 'french fry' in trajectory analysis?

It refers to a compressed and punched out section of foam padding that creates a shape resembling a french fry.