Internal Ballistics
Internal Ballistics covers
What is all functions inside the gun?
External Ballistics covers
What is the path from gun to target?
Terminal Ballistics covers
What is the behavior of the projectile once it hits the target?
Glass is made from
What is different chemical compounds and techniques?
Refractive Index is the study of
What is the measure of light bending in a medium?
The composition of hollow point
What is a shape of a bullet that is typically half jacketed (lead bullet, half coated in copper)?
The path of a bullet and its formulas
What is Trajectory (formulas: Law of Tangents & Pythagorean theorem)?
The range that give star shaped wounds
What is contact? (skin to barrel)
Rolled glass & its feature
What is molten glass run through rollers? What is distortions?
The bright hallo seen at the edges of glass fragments when immersed
What is becke line?
Rifling in the barrel gives bullets
What is striation marks?
External force of gravity
What is curved path going downward as projectile moves forward?
The wound given at close contact (6-12 inches)
What is Fouling/Sooting?
Float Glass and its feature
What is molten glass floated on molten tin? What is flat glass with fluorescence?
Same refractive index
What is match point?
Combustion reaction
Velocity
What is the distance per seconds of the projectile?
The range of 1 foot to 3 feet
What is intermediate range? (This gives a stippling wound)
Toughened Glass
What is specially treated float glass?
PLM and GRIM II
What is insruments that give RI?
The impressions on a casing (in order)
What is Firing Pin Mark, Breechblock Mark, Extractor Mark, Ejector Mark?
GSR
What is gunshot residue on shooter and potentially targets?
No GSR pattern given to victim
What is distant? (3 feet or more)
Fracture Patterns
What is radial and concentric fractures?
Refractive Index formula
Velocity of light in a vacuum divided by velocity of light in the medium