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Advanced Ballistics for Reloading and Shooting, Exams of Safety and Fire Engineering

A wide range of topics related to advanced ballistics, including the forces acting on a bullet's trajectory, reloading techniques and equipment, shotshell reloading, and the science of ballistics. It provides detailed information on various aspects of reloading and shooting, such as the use of reloading scales, case resizing, primer seating, powder loading, and the effects of barrel harmonics and copper fouling on accuracy. The document also discusses the history and principles of ballistics, including the krupp test data and the work of sir isaac newton. Overall, this document appears to be a comprehensive resource for individuals interested in the technical aspects of reloading and ballistics.

Typology: Exams

2023/2024

Available from 08/24/2024

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BBS 200 AVANCED BALLISTICS SDI |
100% Correct | Verified | 2024 Version
After a bullet leaves the rifle barrel, what two forces act on the bullet's trajectory
gravity and the force due to the air
Which reloading scale is accurate, inexpensive, and not affected by changes in atmospheric pressure?
a. An electronic scale
b. A beam scale
c. A kitchen scale
d. A spring scale
A beam scale
The sizing die is ________ and needs to be fitted into an appropriate reloading press.
a. Temperature-sensitive
b. Cartridge-specific
c. Crimped
d. Thermocoupled
Cartridge-specific
Full-length sizing die setup begins by inserting the ______ into the top of the press's ram.
a. Trim die
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BBS 200 AVANCED BALLISTICS SDI |

100% Correct | Verified | 2024 Version

After a bullet leaves the rifle barrel, what two forces act on the bullet's trajectory gravity and the force due to the air Which reloading scale is accurate, inexpensive, and not affected by changes in atmospheric pressure? a. An electronic scale b. A beam scale c. A kitchen scale d. A spring scale A beam scale The sizing die is ________ and needs to be fitted into an appropriate reloading press. a. Temperature-sensitive b. Cartridge-specific c. Crimped d. Thermocoupled Cartridge-specific 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 Shellholder The measurement for overall case length is taken from the flat of the case head to the opening of the case mouth, and the length is always expressed as a maximum dimension less _____________. a. Ten-thousandths of an inch b. One-tenth of an inch c. One one-thousandths of an inch d. Ten-thousandths of a milliliter Ten-thousandths of an inch Which process compresses metal and reforms it to a specified dimension? a. Soft-seating b. Cam-over c. Decapping d. Resizing Resizing What is the proper name for a bullet tip a. The meplat b. The cam

a. Trimming b. Crimping c. Heating d. None of the above None of the above TRUE OR FALSE The shellholder is specific not to caliber, but rather to the dimensions of the case head TRUE 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 It should be facing up What will using the dial or electronic caliper and measuring the case from the meplat to the flat of the case head where the primer is located do? a. Help you decide whether you need to use a roll crimp instead of a taper crimp b. It will give you the COL measurement of the loaded round after soft-seating c. It will give you the COL measurement of the loaded round before soft-seating

d. There is no need to take such a measurement It will give you the COL measurement of the loaded round after soft-seating Which of the following measures the radial run out of a finished round? a. A Hornady scale b. A thermocoupler c. A concentricity gauge d. An EGT gauge A concentricity gauge Which of the following tools returns the expanded brass to a reusable state? a. The resizing die b. The shellholder c. The crimp ring d. The trickler The resizing die Which of the following should not be done with a carbide die? a. The use of a locking ring b. Cam-over c. Cam-under d. None of the above

Which is typically the first step in reloading in which a die is used? a. Filling the case with primer b. Resizing the case to a reusable state c. Polishing the case d. None of the above Resizing the case to a reusable state The two fundamental designs of plastic hulls in use today are a two-piece straight-sided hull and A one-piece, injection-molded, compression-formed hull A ceramic-poured hull A thermocoupled, crimpless hull None of the above. A one-piece, injection-molded, compression-formed hull What will adding weight to your gun help with?

a. Shooting distance b. Creating the perfect load c. Reducing recoil d. Powder burn rate Reducing recoil Standard options for shot include Distance and size Composition and weight Coating and size Size and composition. Size and composition What does a shotshell checker do? a. Measures the precision of hulls and reloaded shells b. Identifies the size of the primer c. Holds the shotshell's pellets d. Acts as a container for shotshell components Measures the precision of hulls and reloaded shells

Which of the following seals the powder away from the shot and prevents the burning gases from leaking through the balls of shot? a. Shotshell sealer b. Wads c. The hull d. The cannelure Wads Which of the following is one of the most important concepts in successful shotshell reloading? a. Carefully following instructions b. Purchasing mail-order kits c. Following a complex equation d. Using common household items to reload shotshells Carefully following instructions TRUE OR FALSE Lead is a naturally occurring element? TRUE TRUE OR FALSE The star fold crimp style demonstrates greater load-to-load consistency of tested speeds and pressures.

FALSE

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 Greater; greater When using a progressive shotgun press, if the primer is not fully seated and sticks out, what is the first remedial action you should take? a. Remove the primer b. Discard the hull c. Attempt to reprime again d. Adjust your primer seating post Attempt to reprime again Which of the following is the last step in the reloading process? a. Dropping the primer b. Inserting the wad c. Making the final crimp d. Marking the ammo

What process could cause live primers to detonate? (choose all that apply) Select one or more: a. Crimping b. Re-priming c. De-priming d. Inserting the wad Re-priming De-priming Which of the following is a difference between shotguns and rifles? a. A rifle's bullet is heavier than a shotgun load b. A shotgun slug "mushrooms" c. Typical muzzle velocity d. Any of the above Typical muzzle velocity TRUE OR FALSE

It is important to keep an eye on the volume a projectile occupies inside the barrel and not wholly fixate upon the projectile's weight. TRUE Which of the following is the first step in the reloading process? a. De-priming and resizing b. Dropping the primer c. Marking the ammo d. Inserting the wad De-priming and resizing What is the effect that is caused by too much copper fouling in the bore? a. The bullet loses stability in flight and can cause wide fliers. b. Of three shots, usually one flyer is present. c. The bore is orange-copper in color. d. None of the above. The bullet loses stability in flight and can cause wide fliers We want to see something measurable when manipulating barrel harmonics by adjusting seating depth. Therefore, we should adjust the jump by very small increments

Set of calipers High quality primers Full length sizing dies Concentricity gauge. Concentricity gauge 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. Improperly trimmed cases. TRUE OR FALSE A shorter bullet is generally more stable when traveling through the bore

FALSE

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. 120 120 Variations in brass weight can cause both __________ and _________. a. Case capacity; extraction problems b. Case weight has no effect on load development. c. Extraction problems; pressure problems d. Case capacity; pressure problems. Case capacity; pressure problems What is one of the effects of a cartridge that is filled with too little powder? a. Weak and uneven powder burn b. Unstable temperature fluctuation.

The dent, coming from the firing pin striking the metal side of the primer, creates the pressure needed to ignite the priming mixture TRUE The primary advantage of a Progressive press is Higher rate of cartridge assembly compared to a single stage press If you are using "range brass" what must you make sure of before reloading check the headstamp for the caliber designation That the cases are the correct chambering for your gun 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 Sorting by manufacturer When sorting brass, what should you do if it cracks, splits, or head separation is detected Discard it After a bullet leaves the rifle barrel, what two forces act on the bullets trajectory Gravity and the force due to the air flow around the bullet

What is the name of the test data, compiled in Germany in 1881 that turned out to be the basis for ballistics table for small arms right up to present time Krupp Test Data When shooting uphill, the gun will shoot High Ballistics deals with? The science of moving projectiles The ballistic pendulum was based upon laws of mechanics formulated by Sir Isaac Newton When shooting downhill, the gun will shoot High A bullets reaction the wind depends on what two factors Speed and direction of the wind What is the altitude used for most ballistics tables Sea Level