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While modern firearms are generally referred to by the name of the cartridge the gun is chambered for, they are still categorized together based on bore diameter. [citation needed] For example, a firearm might be described as a "30 caliber rifle", which could accommodate any of a wide range of cartridges using a roughly 0.30 inches (7.6 mm) projectile; or as a "22 rimfire", referring to any ...
All three had a bore diameter of 5 inches (not 5.51 or 5.25 or 5.38 as often misread). Naval rifles, although constructed and manufactured in roughly the same manners as land-based artillery, were built to much more stringent and studious standards than land-based weapons, and for good reason. At sea, a weapon had to perform, without fail.
Closeup of chamber throat depicting relationship between freebore diameter, rifling groove diameter, and land diameter. The chamber is the rearmost portion of a firearm barrel that has been formed to accept a specific handgun/rifle cartridge or shotgun shell. [5]
bullet – optional – the diameter of the bullet used in the cartridge, expressed in mm or in; only include the number, and not the units of measurement, and omit any commas. land – optional – the land diameter of the rifling in the barrel, expressed in mm or in; only include the number, and not the units of measurement, and omit any commas.
With bullet weights ranging from 125 to 280 gr (8.1 to 18.1 g), the .350 Legend is a highly versatile cartridge with many end uses. The ability to practice cheaply with low recoil, high velocity .35 caliber (9.1 mm) rounds legal for deer hunting opens the door for many new shooters whose recoil sensitivity precludes their use of cartridges such ...
The wounding potential of a bullet is often characterized in terms of its expanded diameter, penetration depth, and energy. Bullet energies for .380 ACP loads vary from 190 to 294 ft⋅lbf (258 to 399 J). [12] The table below shows common performance parameters for several .380 ACP loads.
Bullet diameter.320 in (8.1 mm) Land diameter.315 in (8.0 mm) Neck diameter.338 in (8.6 mm) ... The bullet was a handloaded 170 grain Hornady Jacketed soft point.
Sectional density is a very important aspect of a projectile or bullet, and is for a round projectile like a bullet the ratio of frontal surface area (half the bullet diameter squared, times pi) to bullet mass. Since, for a given bullet shape, frontal surface increases as the square of the calibre, and mass increases as the cube of the diameter ...