how is the length of a gun barrel determined?

Answer 1

length of the gun barrel is from the tip of the barrel to where the barrel meets with the man section of the gun. With most shot guns, or semi-auto weapons its easy to tell cause the barrel comes out easily.

Answer 2

If what you mean is how is the length measured, there are a couple different ways for different types of guns.

For a revolver, the barrel length is measured from the rear of the barrel where it sticks through the frame (the forcing cone) to the muzzle, and does not include the chamber, which is in the cylinder. For all other guns the barrel length includes the chamber and is measured from the breech face with action closed, to the muzzle, exclusive of any removable attachments such as flash hiders, muzzle brakes, etc.

For determining the legal barrel length, except for revolvers, a rod is inserted into the barrel with action closed, until it stops against the breech face. A mark is made on the rod where it exits the muzzle end. The rod is removed from the barrel and the distance between the end of the rod and the mark is measured.

Answer 3

question #a million: Does barrel length be sure accuracy? answer #a million: No it does no longer. question #2: in case you answer "no", then what DOES be sure accuracy? and what are some super advantages of turning out to be a barrel long? answer #2: initially it replaced into the rifling. That replaced into for the duration of the days that mushy-bores have been the norm and innovative human beings in Kentucky & Pennsylvania found out that slicing grooves interior the graceful bore of their muskets critically develop variety & accuracy. those days cutting-side weapons are as precise because of the fact the shooter. No cutting-side gun is so precise that it will make a awful shot a renowned marksman. each and every of the longer barrel will do is provide you greater of a sight radius and so an prolonged barrel on a handgun would seem to be greater precise than a short barrel. In different words, an prolonged barrel may well be less complicated to attempt than a shorter barrel yet that doesn't make the fast barrel misguided. I very own 2 Colt Pythons and a Ruger protection Six w/2-n-3/4" barrel; the Pythons have 4" and 6" inch barrels. wager what? All 3 shoot to a similar ingredient to impact at 15 yards. The shorter barrel revolvers have greater muzzle flash nevertheless. H

Answer 4

The barrel length is determined by measuring where the chambering ends inside the barrel out to the end of the barrel. It also is a misconception that the longer the barrel, the more accurate the shot. This depends on the type of gun, ammunition, and the range you are shooting.

Answer 5

The other readers have pretty well answered your question. I am wondering if you didn't mean how a hunter determines the barrel length of the rifle he's buying?

Up to about 26" the longer the barrel the further it will shoot, as the bullet will develop more velocity particularly in the 'magnum' calibers. Practically 22" to 24" is more ideal, as you have to lug that rifle around in the field.

I have a Remington .25-06 with a 24" inch barrel. One year a Bobcat tried to get into my shooting blind with me (long story) and I quickly found out I couldn't maneuver that 24" barrel in the confines of my blind. To not carry extra weight I'd left my Colt Python in my hunting cabin. Fortunately I had a flashlight with me that scared the cat off when I turned it on.

Lessons learned: 1.) Always carry a handgun for backup when hunting; 2.) if you find dessicated turds with feathers in them in your shooting blind, they might not just be from owls or raccoons!

H

Answer 6

The official length is measured from the tip/end of barrel to the round chamber(where the hammer makes contact). To be legal, the barrel must be a minimum of 18 inches in length or longer.

Answer 7

By the cartridge that will be used. When powder is burned it turns to gas and propels the bullet forward. Only a certain amount of gas can fit through an orifice at one time. A cartridge that burns a lot of powder is called overbore and is less efficient. It will need more barrel to get the extra push from the extra gas produced. A belted magnum is less effiicient than a 308 so it needs a longer barrel.

Answer 8

depends on the ammo and purpose of the weapon. sniper rifles and long range assault rifles have longer barrels. longer the barrel the increase in accuracy. longer the barrel however decreases the firing rate. machine guns or smaller handguns have shorter barrels since accuracy is not important but getting off a quick shot is. newer "hybrid" guns like the bullpup design guns have the best of both worlds meaning they have long barrels but can also fire rapidly as well.

Answer 9

By measuring from the start of the chamber to the end of the barrel.

Answer 10

By the amount of stability you want to give the bullet. It's a tradeoff to carrying weight. Longer barrels are better for longer shot accuracy, but weigh more.