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SDI -BBS 200- Advance Ballistics Exam with Complete Solutions
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SDI -BBS 200- Advance Ballistics Exam with Complete Solutions
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SDI -BBS 200- Advance Ballistics Exam withComplete Solutions
A bullets reaction the wind depends on what two factors - ANSWER-Speed and
direction of the wind
According to the author, about _____ rounds should be initially used to test the
projectile that you have created.
a. 45
b. 75
c. 95
d. 120 - ANSWER-120
After a bullet leaves the rifle barrel, what two forces act on the bullet's trajectory -
ANSWER-gravity and the force due to the air
After a bullet leaves the rifle barrel, what two forces act on the bullets trajectory -
ANSWER-Gravity and the force due to the air flow around the bullet
Ballistics deals with? - ANSWER-The science of moving projectiles
Dents in the case shoulder are caused by all of the following except:
a. Die set too low plus too much case lube.
b. Case lube escape port in the die is blocked.
c. Case lube on the case shoulder.
d. Improperly trimmed cases. - ANSWER-Improperly trimmed cases.
Fill in the blanks. The principle behind stacking buckshot pellets is that the____the
angle of surface contact between two pellets, the ____the tendency those pellets will
impart energy in that direction.
a. Greater; greater
b. Greater; lesser
c. Lesser; greater
d. Lesser; lesser - ANSWER-Greater; greater
For greatest potential accuracy, after you have separated the brass that was fired from
your own gun from that which was otherwise procured, what is the next step -
ANSWER-Sorting by manufacturer
For most presses with the priming feature, which way should the primer anvil be facing?
a. It should be facing up
, b. It should be facing down
c. It should be facing you
d. None of the above - ANSWER-It should be facing up
Full-length sizing die setup begins by inserting the ______ into the top of the press's
ram.
a. Trim die
b. Decapping pin
c. Case lube
d. Shellholder - ANSWER-Shellholder
If the desired effect is to use a hunting load that will touch the lands of the rifling , you
must create good __________ and a nicely _________.
a. Contrencicity; polished throat.
b. Contrencicity; polished feed ramp.
c. Case tension; polished throat.
d. Case tension; polished feed ramp. - ANSWER-Case tension; polished throat.
If the temper of the brass is poor and leads to split neck cases, what remedial action
should take place for the remainder of the cartridges in the bin?
a. Case lubrication must be applied.
b. Nothing can be done; this only occurs when a rifle has an oversized chamber.
c. The reloader must anneal the remainder of the brass.
d. The brass manufacturer must be notified of a bad batch. - ANSWER-The reloader
must anneal the remainder of the brass.
If you are using "range brass" what must you make sure of before reloading -
ANSWER-check the headstamp for the caliber designation
That the cases are the correct chambering for your gun
In order to achieve optimal rifle accuracy, it is recommended that the reloader purchase
a
Set of calipers
High quality primers
Full length sizing dies
Concentricity gauge . - ANSWER-Concentricity gauge
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