The chamber is the part of a firearm where ammunition is inserted into. The chamber has a diameter of about 1 1/8″ in the center of the barrel, and the overall chamber may vary in diameter to about .308″. The chamber diameter is determined by the diameter of the barrel.
What is an “inch” of length?
An inch is the unit used to measure the distance from the muzzle of a firearm to a point where the bullet exits from the barrel, and also the weight of the bullet.
What is a “shot to stop” distance?
The average distance between the center of a bullet’s point of aim and its point of impact is called the round-to-shots fired shot to stop; this is measured in feet.
What is an inch of pressure drop?
The pressure drop occurs once a round has left the barrel because of the velocity difference of an individual round and the bullet’s momentum as it exits the barrel.
How do I determine if the barrel is free of fouling?
An accurate bore is generally considered good. The average bore is good if all steel parts of the barrel are smooth, and the diameter of the bore is at least 3/8″ or greater, and all of the grooves and ridges are clean. The average bore is generally considered average if all steel parts of the barrel are not free of fouling, and the barrel is free of rust.
What makes a “good” barrel?
Powder (primer), groove widths (grooves), and rifling.
What should be considered before making a purchase of one of these shotguns?
The barrel must be free of damage from fire and must have no corrosion on its surfaces. The barrel MUST also be free of dust and cobwebs. In addition, you must make sure that any cleaning or finishing process is appropriate for the particular type of firearm. You must also make sure that any type of firing pin is properly fitted for the firearm. When you do this, the chances are that you will do very well with the particular shotgun.
How do you determine whether the barrel is “free of fouling”?
The number of grooves is an indicator. The groove width is an indicator. There has been evidence from some evidence and not all evidence that a properly fitting firing pin may eliminate fouling, or even that fouling may be limited to a small area on the inside of the firing pin body