Yes, slightly. One of the reasons that bullets are made of soft metal is to permit them to be squeezed down, and fit themselves to the barrel.
the pistons are the same diameter. no they are not the same diameter, the bore on a 305 is smaller than a 350
Hell no. .410 is not a gauge it is a caliber. True gauge is a measurement of the number of lead balls of bore diameter that constitute a pound. The .243 bullet is a lot smaller than the diameter of a .410 barrel. There are some .410's that can shoot 45 colts but not all can.
Generally the nominal diameter of cylinder bore is kept little smaller at cylinder head than at the bottom. The engine head will be generally heat and it tends to expand for these high temperatures. To prevent the bore diameter at head to exceed diameter at bottom,piston engine bore is ground with a slight choke.
Bore slugging is done by taking a lead cylinder(slightly larger in diameter than bore) and pounding it through the bore. Once it's through, you mic it with a caliper. This gives the bore's exact diameter.
smaller
Not reliably. The 9mm bullet is a bit smaller in diameter than a .38, and the cartridge has no rim- it will push into the cylinder. Brass is also likely to split if it DOES fire.
I suppose you mean: What is a 30 caliber bore? The bore of a Rifle is referred to as the caliber, which equates to the diameter of the bullet it fired. A gun that shoots a 9mm bullet would be a 9mm caliber or the bore size. Most guns originally made in US were measured in INCHES. Thus a 22 caliber rifle was a gun that shot a 0.22 inch diameter bore. Since the US Army began to change over to the metric system, it began making guns to the 9mm and 7.62mm sizes. Some bores can have alternate names. A new pistol bullet is the 0.40 INCH caliber designed by Smith&Wesson is also referred to as the 10mm caliber. The bore size of Shotguns are measured using Gauge. For example, shotguns are referred to as 12-Gauge or 20-Gauge. Gauge is an unusual measurement. The gauge equates to the number of lead balls that are made to the diameter of shotgun's bore and totals a weight of 1 pound. Thus, a 12-gauge shotgun has a diameter that of a ball that would weight 1/12 of a pound. That means the Larger the bore of the shotgun, the smaller the gage number. A 12-gauge shotgun is bigger bore than a 20-gauge shotgun.
The most obvious different is the 10mm bullet is smaller in diameter than the .45. A 10mm bullet is .40 of an inch and the .45 is .45 of an inch. Other differences, depending on exactly which cartridge you are referring to, are muzzle energy and velocity.
This is a shotgun with an internal barrel diameter (called the "bore) of approximately .410" which shoots a shell which is about .410" in diameter. It is the only shotgun shell size that uses this convention. A 12 gauge shotgun, for example, does not have a bore of "12". A 20 gauge shotgun has a smaller bore than a 12 gauge and a 10 gauge has a bigger bore than a 12. Gauge size is based on the number of lead balls of the bore diameter which are required to make a pound (16 ounces). 10 balls, 12 balls, or 20 balls.
It's a substantially more powerful cartridge. It does have a smaller bullet diameter than the 7.62x39, but a substantially higher muzzle velocity with a heavier projectile.
Yes, it is larger, the smaller the gauge the larger the bore i.e. 3 gauge is larger in diameter than a 8 gauge or a 12 gauge.
A 22 caliber bullet is 22/100 inches in diameter. A 7.62 mm bullet is 30 caliber or 30/100 inches in diameter there is no such thing as a 7.62 caliber bullet