5. Ammunition Flashcards
Under what circumstances can you store ammunition with a firearm?
Only when it is securely locked and cannot be easily broken into
Name the malfunction whereby, after the trigger is pulled, there is a several second delay before firing?
Hangfire
What is the preferred temperature and humidity for ammunition storage?
In a cool, dry place. Preferably vented
Describe four factors which affect trajectory?
Gravity, air resistance, velocity, and mass
What safety precaution should be taken with a firearm that does not have a data stamp?
Take the firearm to a professional to measure the chamber and advise ammunition.
Is it legal to display a firearm and its ammunition together?
What is rifling?
Rifled barrels have a series of spiral grooves inside the barrel. The ridges are called lands. Rifling makes the bullet spin as it leaves the barrel so that it will be stable in flight.
What is calibre?
Rifled firearms are sized by caliber. It is a measurement of bore diameter in either thousand of inches or millimeters. Inches are usually land to land and mm are groove to groove
What are the two types of cartridges commonly used?
rim-fire and centre fire. Describes where the primer is located at the base of the cartridge casing.
What are the components of a cartridge?
Tip to base - bullet, powder charge, case, primer
When the nose of the bullet is covered it a cartridge it is also called a…?
full-metal jacket, hard point or ball ammunition
When the nose of the bullet is uncovered it a cartridge it is also called a…?
jacketed soft point
What information is found on the headstamp?
calibre, manufacturer, and whether the ammuntion is regular or magnum
How are shotguns sized?
By gauge instead of calibre
What are 3 slug types?
rifled (spiraled grooves), sabot (flat top), and rounded
How many lead balls are in a pound? and how many gauges is a pound?
12 lead balls = 1 lb = 12 gauges
What is the choke?
It is the narrowing at the muzzle end. Helps control the spread of the shot after it is fired.
What are the patterns of pellets on the target from the choke
full choke - tight pattern
modified choke - more open
improved cylinder - more open
cylinder bore = no choke - most open
What are the components of shell?
tip to bottom - Shot or slug, wad, powder, primer, hull
What are the differences between shot shells and shotgun shells with slug?
Shot shells have shots instead of a slug and are crimped closed as they cant be exposed like a slug
What is the dangers of a wrong shell size?
Could burst the barrel and the firing hull opens
What is stamped on the barrel or action of a shotgun?
gauge, max shell length, type of choke
What is a buckshot?
a large size of lead shot used in shotgun shells for hunting game, as pheasants or ducks.
What are 3 ammunition hazards?
Misfire, hangfire, and primer pop
