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SDI Basic Ballistics (BBS 100) Questions and Answers
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SDI Basic Ballistics (BBS 100) Questions and Answers
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SDI Basic Ballistics (BBS 100) Questionsand Answers
.22 Short - ANSWER-Which of the following was the first successful rimfire cartridge,
introduced by Smith & Wesson?
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. - ANSWER-Match
the following ballistic terms:
1. Buckshot:
2. Centerfire:
3. Energy:
4. Rifling:
5. Trajectory:
6. Pressure:
7. Ogive:
8. Foot/Pound:
1. Runs at room temperature and does not contact hot metal
2. Flows the metal under tons of pressure, squeezing out air pockets and voids
3. Takes it shape from the diamond-lapped hardened surface of the die.
4. The die does not split in two to release the die - ANSWER-Select all that apply to
bullet swaging: (p71)
1. You will be pushing a larger part through a smaller hole
2. You always draw things down
3. In this process you will reduce the diameter of the initial object
4. In this process you will use a die with a ring type open end - ANSWER-In the process
of bullet drawing, there are several notable differences from bullet swaging. Select all
that apply to bullet Drawing:
10 - ANSWER-According to the author of the course textbook, an automated rotary
caster is about ______ times as productive as manual casting.
100 - ANSWER-When loading on a progressive press, always load in __________
primer increments.
, 110 Grains - ANSWER-How many grains of black powder are used in the .50-110-300
Winchester Cartridge?
1280 - ANSWER-The empirically derived formula for best hardness is: (Brinell hardness
in BHN) BHN= PSI/_________
15k-150k PSI - ANSWER-What is the range of pressure used during bullet swaging?
1906 - ANSWER-What year was the .30-06 cartridge modified and adapted by the U.S.
Government?
4x the Thickness of the Paper - ANSWER-With a paper patched bullet, the dies should
be smaller than the groove to groove depth of the bore by:
5 Inches - ANSWER-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?
612 F - ANSWER-Pure lead melts at around ______________.
6MM Lee Navy - ANSWER-The following line drawing depicts one of the first successful
rimless cartridge designs in American History. What is the name of this cartridge?
8MM Mauser - ANSWER-The 8x57mm Cartridge- developed in Europe - is also known
as the ______________ in America.
A Century - ANSWER-Citing the manual, Reloading for Handgunners, how long have
loading manuals been produced?
A Heat Treatment Oven - ANSWER-What is used to melt lead cores for bonding to the
jacket and heat treating either jackets or lead itself?
Aluminum - ANSWER-Which type of cartridge is marketed primarily for general target
shooting and training applications:
Ammunition loaded into a weapon where the projectile is independently loaded from the
propellant charge - ANSWER-Which of the following is not a component of a self-
contained cartridge?
Anvil - ANSWER-The ____________ is what squeezes the priming compound and sets
it off.
Ballein - ANSWER-What was the early Greek term for ballistics, meaning "to throw"?
Ballistics - ANSWER-The science of projectiles in flight is known as:
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