BBS 100: SDI Basic Ballistics-Test
Questions With 100% Solved Solutions.
In a crosswind of 10 miles per hour, a .22LR bullet, with a muzzle velocity of 1335 fps will be
blown downwind how many inches at 100 yds? - Answer 5 Inches
What was the early Greek term for ballistics, meaning "to throw"? - Answer Ballein
The realm of interior ballistics extends: - Answer From the Breech of the Gun to the Muzzle
The forward speed of a bullet, usually specified in feet per second, is called: - Answer Velocity
One of the more convenient devices for determining bullet drop is the: - Answer Powley High
Velocity Chart
As the study of ballistics progressed, the field of ballistics was broken into two differently
phases: - Answer Interior and Exterior Ballistics
The realm of the exterior ballistics extends: - Answer From Muzzle to the Target
Heavier Bullets: - Answer Sustain their Velocity longer than lighter ones
True/False: Every gun this is fired has recoil. - Answer True
The raised portion in the bore, between two adjacent grooves is called: - Answer Land
The pressure exerted on the chamber walls when a cartridge is fired is called: - Answer Breech
Pressure
Match the following ballistic terms:
1. Buckshot:
2. Centerfire:
3. Energy:
4. Rifling:
, 5. Trajectory:
6. Pressure:
7. Ogive:
8. Foot/Pound: - Answer 1. Large lead pellets used in shot shells
2. Refers to a centrally located primer. Most are reloadable.
3. Amount of work capable of being done by a projectile Foot/Pounds
4. Parallel spiral grooves cut into the bore
5. The path of the projectile in flight
6. The pressure exerted by a burning charge of powder in the gun. Expressed by PSI.
7. Radius of the curve of the bullet nose, usually expressed in calibers
8. Unit of Kinetic Energy to raise 1 lb up 1 ft against normal gravity.
In a ______________ cartridge, the primer is located in a small wall, or depression, in the center
of the case head. - Answer Centerfire
Each cartridge is made up of 4 basic parts: - Answer Case, Primer, Powder, Bullet
A ____________ is the term used in measuring bullet dispersion (1" @ 100 yds) - Answer
Minute of Angle
Rifling consists of: - Answer Lands and Grooves cut in a Rifle Barrel
True/False: Under pressure of the powder gas, abduration takes place, in which the case
expands against the magazine wall, making a semi-rigid seal and preventing gas from escaping
to the sides - Answer False
Ballistics deal with: - Answer The Science of Moving Projectiles
Trajectory is best described as: - Answer The Pattern and Curved Path of a Bullet in Flight
Bullet energy is normally expressed in: - Answer Foot/Pounds
The following line drawing depicts one of the first successful rimless cartridge designs in
American History. What is the name of this cartridge? - Answer 6MM Lee Navy
A centerfire cartridge uses a small explosive device called a: - Answer Primer
Questions With 100% Solved Solutions.
In a crosswind of 10 miles per hour, a .22LR bullet, with a muzzle velocity of 1335 fps will be
blown downwind how many inches at 100 yds? - Answer 5 Inches
What was the early Greek term for ballistics, meaning "to throw"? - Answer Ballein
The realm of interior ballistics extends: - Answer From the Breech of the Gun to the Muzzle
The forward speed of a bullet, usually specified in feet per second, is called: - Answer Velocity
One of the more convenient devices for determining bullet drop is the: - Answer Powley High
Velocity Chart
As the study of ballistics progressed, the field of ballistics was broken into two differently
phases: - Answer Interior and Exterior Ballistics
The realm of the exterior ballistics extends: - Answer From Muzzle to the Target
Heavier Bullets: - Answer Sustain their Velocity longer than lighter ones
True/False: Every gun this is fired has recoil. - Answer True
The raised portion in the bore, between two adjacent grooves is called: - Answer Land
The pressure exerted on the chamber walls when a cartridge is fired is called: - Answer Breech
Pressure
Match the following ballistic terms:
1. Buckshot:
2. Centerfire:
3. Energy:
4. Rifling:
, 5. Trajectory:
6. Pressure:
7. Ogive:
8. Foot/Pound: - Answer 1. Large lead pellets used in shot shells
2. Refers to a centrally located primer. Most are reloadable.
3. Amount of work capable of being done by a projectile Foot/Pounds
4. Parallel spiral grooves cut into the bore
5. The path of the projectile in flight
6. The pressure exerted by a burning charge of powder in the gun. Expressed by PSI.
7. Radius of the curve of the bullet nose, usually expressed in calibers
8. Unit of Kinetic Energy to raise 1 lb up 1 ft against normal gravity.
In a ______________ cartridge, the primer is located in a small wall, or depression, in the center
of the case head. - Answer Centerfire
Each cartridge is made up of 4 basic parts: - Answer Case, Primer, Powder, Bullet
A ____________ is the term used in measuring bullet dispersion (1" @ 100 yds) - Answer
Minute of Angle
Rifling consists of: - Answer Lands and Grooves cut in a Rifle Barrel
True/False: Under pressure of the powder gas, abduration takes place, in which the case
expands against the magazine wall, making a semi-rigid seal and preventing gas from escaping
to the sides - Answer False
Ballistics deal with: - Answer The Science of Moving Projectiles
Trajectory is best described as: - Answer The Pattern and Curved Path of a Bullet in Flight
Bullet energy is normally expressed in: - Answer Foot/Pounds
The following line drawing depicts one of the first successful rimless cartridge designs in
American History. What is the name of this cartridge? - Answer 6MM Lee Navy
A centerfire cartridge uses a small explosive device called a: - Answer Primer
