BBS 200 AVANCED BALLISTICS SDI

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

Though some shotguns are capable of more, most are most effective under 25 100 75 400 yards.

100

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

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

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

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

Which of the following allows great precision in your powder loading? a. A plastic spoon b. A powder trickler c. A powder funnel d. Power horn

A powder trickler

What is a major consideration when beginning to prime? a. Only use the primer brand and size specified for the load you are using b. Verify there are no crimps in the case c. Wear safety glasses d. All of the above

All of the above

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

What is the name for backing off the ram slightly and screwing in the die an additional 1/8- to ¼-turn? a. Soft-seating b. Cam-over c. Decapping d. Crimping

Cam-over

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

Cam-over

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

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

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

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.

Case tension; polished throat.

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 .

Concentricity gauge

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 must be done after any trimming operation? a. Removing the expander die b. Lubricating the case c. Deburring the inside and outside of the neck with a chamfering tool d. None of the above

Deburring the inside and outside of the neck with a chamfering too

When sorting brass, what should you do if it cracks, splits, or head separation is detected

Discard it

TRUE OR FALSE A shorter bullet is generally more stable when traveling through the bore

FALSE

TRUE OR FALSE Despite the extreme stresses places on cases, because of oburtration, previous fired brass cases do not requie special preparation before being reloaded

FALSE

TRUE OR FALSE The star fold crimp style demonstrates greater load-to-load consistency of tested speeds and pressures.

FALSE

Which of the following statements is false? a. Filler wads in the base of the shot cup are there for the convenience of the reloader b. Use filler wads only if necessary c. Filler wads in the base of the shot cup are indispensable to the reloader d. Using the correct height filler wad is necessary

Filler wads in the base of the shot cup are indispensable to the reloader

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

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 shooting downhill, the gun will shoot

High

When shooting uphill, the gun will shoot

High

The primary advantage of a Progressive press is

Higher rate of cartridge assembly compared to a single stage press

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.

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

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

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

Marking the ammo

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

In what type of terrain are vertical winds usually encountered

Mountainous or hilly areas

The sizing die is ________ and needs to be fitted into an appropriate reloading press. a. Trimming b. Crimping c. Heating d. None of the above

None of the above

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

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

Which process compresses metal and reforms it to a specified dimension? a. Soft-seating b. Cam-over c. Decapping d. Resizing

Resizing

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

Who invented the ballistic pendulum in the year 1740

Robins

What is the preferred shape of shotgun pellets? a. Oblong b. Pointy c. Round d. None of the above

Round

What is always the first consideration when reloading any cartridge

Safety

What is the altitude used for most ballistics tables

Sea Level

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 ballistic pendulum was based upon laws of mechanics formulated by

Sir Isaac Newton

Standard options for shot include Distance and size Composition and weight Coating and size Size and composition .

Size and composition

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

A bullets reaction the wind depends on what two factors

Speed and direction of the wind

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

TRUE OR FALSE Lead is a naturally occurring element?

TRUE

TRUE OR FALSE The dent, coming from the firing pin striking the metal side of the primer, creates the pressure needed to ignite the priming mixture

TRUE

TRUE OR FALSE The shellholder is specific not to caliber, but rather to the dimensions of the case head

TRUE

True or False The cleaning of the primer pocket cannot be done until the primer is removed.

TRUE

True or False To achieve proper obturation on a resized case, it is preferable to focus on the dimensions of a minimum chamber specification, one that has only the slightest clearance needed to easily and safely chamber the round.

TRUE

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 press is essentially single-stage but can be mounted with various dies at one time

The Turret

What is case obturation

The ability of a case to expand and then return to its basic shape

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

What is the proper name for a bullet tip a. The meplat b. The cam c. The head d. The point

The meplat

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.

The reloader must anneal the remainder of the brass.

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

Ballistics deals with?

The science of moving projectiles

Which of the following is true about promotional loads? a. They are given away at shooting ranges b. They are loads that contain biodegradeable materials c. They are cheaper rounds designed for one time use d. None of the above

They are cheaper rounds designed for one time use

What is the primary function of the hull? a. To swiftly eject the projectile b. To keep the primer dry c. To package the powder and shot in a neat, complete unit d. None of the above

To package the powder and shot in a neat, complete unit

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

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

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. c. All of the above. d. Inconsistent ignition of the primer.

Weak and uneven powder burn

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

After a bullet leaves the rifle barrel, what two forces act on the bullet's trajectory

gravity and the force due to the air

What is "start pressure"

the amount of pressure necessary for the bullet to overcome the natural forces of friction

We want to see something measurable when manipulating barrel harmonics by adjusting seating depth. Therefore, we should adjust the jump by very small increments there is not much point in adjusting the jump by a very small fraction we should just use a different bullet

there is not much point in adjusting the jump by a very small fraction


संबंधित स्टडी सेट्स

作文好词好句 高兴 & 生气

View Set

BGEN 360-700 International Business Chapter 3

View Set

Lecture 169 Spondyloarthropathies: Ankylosing Spondylitis, Psoriatic Arthritis, Reactive/Enteropathic Arthritis and HLA-B27......and Adult Still's Disease

View Set

Co-Occurring Disorders - Terms Related To Substance-Related and Addictive Disorders

View Set

Fluid, Electrolyte & Acid-base balance

View Set

Chapter 10 Public Opinion and Political Socialization

View Set

Chapter 3: Health, Illness, and Disparities

View Set