dirtpusher Loc: tulsa oklahoma

yup you iz :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen:

venturer9 Loc: Newton, Il.

Since shotguns were not originally intended to fire solid projectiles, but rather a compressible mass of shot, the actual diameter of the bore can vary. The fact that most shotgun bores are not cylindrical also causes deviations from the ideal bore diameter.
The chamber of the gun is larger, to accommodate the thickness of the shotshell walls, and a "forcing cone" in front of the chamber reduces the diameter down to the bore diameter. The forcing cone can be as short as a fraction of an inch, or as long as a few inches on some guns. At the muzzle end of the barrel, the choke can constrict the bore even further, so measuring the bore diameter of a shotgun is not a simple process, as it must be done away from either end.
Shotgun bores are commonly "overbored" or "backbored", meaning that most of the bore (from the forcing cone to the choke) is slightly larger than the value given by the formula. This is claimed to reduce felt recoil and improve patterning. The recoil reduction is due to the larger bore producing a slower acceleration of the shot, and the patterning improvements are due to the larger muzzle diameter for the same choke constriction, which results in less shot deformation. A 12-gauge shotgun, nominally 18.5 mm (0.73 in), can range from a tight 18.3 mm (0.72 in) to an extreme overbore of 20.3 mm (0.80 in). Some also claim an increased velocity with the overbored barrels, up to 15 m/s (49 ft/s), which is due to the larger swept volume of the overbored barrel. Once only found in expensive custom shotguns, overbored barrels are now becoming common in mass marketed guns. Aftermarket backboring is also commonly done to reduce the weight of the barrel, and move the center of mass backwards for a better balance. Factory overbored barrels generally are made with a larger outside diameter, and will not have this reduction in weight—though the factory barrels will be tougher, since they have a normal barrel wall thickness.

Mike

outdoorphotoman Loc: Helena, .MT

Hey Ricky, You don't know much abut guns do you? Machine guns are legal only for about 1% of our citizens. As far as the executive action that Obama is putting into place it would only stop .07 percent of shootings in the US. That is 7 hundredths of 1 percent. All of the guns in recent shootings were purchased legally or stolen. If Obama prosecuted the laws on the books we now have, crime in Chicago and other large cities would drop 60 to 70%. Maybe you should use Google and learn what a magnum and a shotgun are? If you want to get into a coversation about guns try to learn something about them first. Maybe take a couple of classes and learn how to shoot.

dirtpusher Loc: tulsa oklahoma

lol you an skybrain, are the ones saying shotguns are not calibered. or don't have a cliber... guess you allz iz incorrect again. :roll: :roll: :roll: :roll: :roll: :roll: :roll: :roll: :roll: :roll: :roll: :roll: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :XD: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen:

venturer9 Loc: Newton, Il.

In other words, you never read what has been posted on the Guage not Caliber of Shotguns.... Got it.... stupid is as stupid does not read..

Mike

dirtpusher Loc: tulsa oklahoma

stupid never once have i said gauge was a caliber. lol yuz haven't figured out ALL guns that has a CYLINDER has a caliber iz wat iz say'n. so deal with it. :roll: :roll: :roll: :roll: :roll: :roll: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: ..........:mrgreen:

yhtomit Loc: Port Land. Oregon

How would it have prevented San Bernadino massacre?

dirtpusher Loc: tulsa oklahoma

it pretty hard to stop a crazy person. if don't know where or who they are :roll: :roll: :roll:

yhtomit Loc: Port Land. Oregon

But how?

dirtpusher Loc: tulsa oklahoma

what is your plan :?: :?: :?: :?:

yhtomit Loc: Port Land. Oregon

Arm teachers and the general public. It take care of the problem where it occurs, when it occurs. Any other solution feels good, but does not fix the problem. Kids and innocent people will continue to be massacred.

dirtpusher Loc: tulsa oklahoma

i like kansas law. no permit required :thumbup: :thumbup: :thumbup: :thumbup:

venturer9 Loc: Newton, Il.

NO, it started out with you saying that the op said something it did not say... and you haven't changed your tune yet...

Mike

dirtpusher Loc: tulsa oklahoma

Lol so what is the caliber of a 12 gauge shotgun :roll: :roll:

venturer9 Loc: Newton, Il.

It has no caliber, it has a gauge...........a 12 gauge to be precise...

Mike