All types of guns do not contain rifling but they do shoot little mini david's at high speed velocity....... unfortunately they are deadly weapons to the brain and can dig their way into the stomach and eat you from the inside out.
Some fire shot- a number of lead pellets. Rifling causes the pattern of shot to open, leaving a hole in the middle of the pattern.
Not all types of guns have rifling. Shotguns, for example, typically have smoothbore barrels, meaning they lack rifling. This design is intentional, as shotguns are designed to fire multiple projectiles (shot) or larger single projectiles (slugs) that spread out over a wider area, making them effective for hunting birds or in close-range situations. Rifling is primarily used in firearms that fire single projectiles, as it helps stabilize the bullet for greater accuracy over longer distances.
Moisture, range, no rifling.
Among others. Smith & Wesson uses 6/6 in many of their guns.
No. Different types of ammunition for different types of guns. There's no "one gun" that can fire all types of ammo.
All types.
In the 1500s. Did not really catch one until the late 1700s.
All types
All of them
No
Most all teams allows virtually all types of guns. The question is what fields are the CO2 guns allowed.
Light, Medium and Heavy