If an Airsoft gun barrel of 6 mm. inner bore diameter has no inner rifling or groove, what is its caliber ?
535311
the 2 answers that PuterPrsn and Greeranger sent are bouth right BUT NEVER DO WHAT Devin did.
697809
0.25in * (25.4mm/1in) = 6.35mm (conversion factor)
797749
the Apex barrel is an adapted part to the original barrel for the 98 and a-5 you cannot but the adapted part it comes with the barrel.  When ive taken mine apart to clean i noticed it was the same barrel as the one i replaced it for.........and its got a wicked curve that you will have to learn to control many in our group have it.......but it will not go around a tree like the picture shows but it will take off about 10% of there buncker and if they are not ready blam....      ive gotten people on top of the hill with me at the bottom and ive dropped them in a fox hole ..............\n\nwww.texasghostwalkers.com          The Silencer.
505009
Sturm Ruger recently supplied 5,000 of their model P95D auto pistols, now designated the M95D in caliber 9 m/m, to U.S. troops in Iraq. This could possibly be the weapon you're wondering about.
972039
For naval guns and artillery, "caliber" refers to the ratio of the barrel length to the bore diameter.  Thus, a 16 in 45 caiber gun would have a barrel 720 in (60 ft) long, and a 50 caliber, 800 in (66.67 ft) long.  Incidentally, people often refer to a ".38 caliber" revolver, or a ".30 caliber" rifle.  Actually, the CORRECT usage of the term, when applied to the bore diameter of a rifle or handgun, is to have it PRECEDE the number, ie, "caliber .38" or "caliber .30."
761435
Airsoft guns are cosmetic copies of actual weapons, which fire a 6mm plastic bb at low airgun velocities of 150 to 300 or so feet per second, depending on the model. They are priced between twenty dollars  for a low-end plastic spring gun, To  a thousand dollars or more for a full size, full auto, LEGAL M-60 machinegun!\n....How can you buy a LEGAL MACHINEGUN through the mail?\nBecause an airsoft machine gun (which runs on battery power or is co2 operated) IS NOT A FIREARM, and is not regulated by the BATFE!  \nEntry level  full auto airsoft guns can be had for fifty bucks or so. \nA nice metal bodied, metal geared M-16 can be had for less than three hundred, that, except for it's blaze orange painted muzzle, (mandated by federal law for safety reasons), would be hard to tell from the real thing even when you are holding it!\nDifferent models from numerous companies in Japan, Taiwan, and China produce literally hundreds of models, each an identical twin of a real historical or modern weapon. They have been around in the orient since the mid 1970's, but are just becoming popular here in the USA.\nBesides collectors, There are clubs that play paintball type games with airsoft guns, and they are also used by police and military for training purposes, because they so closely resemble the real deal in weight, appearance, feel, and function.\n\nThey ain't your grandaddys BBgun - that's for sure!
55276
http://gunshopfinder.com/hk/FP6.asp\nmaybe this can help
521814
.62 for the main stock.
794091
I'd suggest you first try the site listed below where you can find a downloadable spreadsheet that predicts velocity. You can deduce the author's equations from it. It's actually a time-stepping simulation rather than analytical equations. However, a bit of theory wouldn't hurt either. First, to keep it simple, let's assume the pressure is constant for T, the lesser of the time the valve is open and the time the projectile remains in the barrel. This is actually not a good assumption since many spudguns have pressure vessels that are smaller than or not much bigger than the barrel volume. Anyway, during T the spud is subjected to a force F=P*barrel area = P*pi*d^2/4. The net force accelerating the spud is F - friction force, so its acceleration A=(F-Ffriction)/M and its velocity v=A*T. I don't know the practice on valving. It may be that open valve time is always less than barrel transit time, but if not, you can compute the distance S that the spud would travel during the open valve interval T; S=0.5*A*T^2. If S>l, then T is the time spent in the barrel, which is SQRT(2*l/A), and you should recompute v. \nAnother assumption would be that each shot entirely empties the pressure tank. In this case we simplify by disregarding pipe friction, thermodynamic losses (like failure to fully expand due to cooling) and any other losses you can think of, and assume the potential energy of the compressed air is converted to kinetic energy. The potential energy PE = 0.5*P*vol (where vol is tank volume = L*pi*D^2/4). The kinetic energy of the spud is 0.5*M*v^2. Thus v=SQRT(P*vol/M).\nAbout other questions, 1 psi = 6894.75729 Pascals, and speed of sound =340.29 m/sec.\nNote that with what you have given in your question, you have a lot of units conversion to do.\nEDIT: See friction stuff added above. The spreadsheet includes friction effects.
195881
It depends. .32ACP is the 32-caliber Automatic Colt Pistol round, a semi-rimmed 32-caliber round. \n\nThere is also the .32S&W, the 32-caliber Smith and Wesson, with a shorter, rimmed case.\n\nThere are other .32 caliber rounds as well as the above two. So just saying "32" doesn't mean much, unless it's followed by some specification. PLEASE TAKE NOTE: although some 32-caliber rounds will fit in other chambers, it is not safe to do so. If your barrel is marked "32 Auto" or "32ACP" you'd better use that round in the gun.
801057
Bound's hubby here:\n\nThe 9mm pistol (or .380 which is a 9mm Short) fires a bullet that is .355" in diameter. The .38 Special and .357 Magnum fire a bullet that is nominally .357" to .358" in diameter.\n\nRifle cartridges that fire bullets whose diameter is close to the 9mm would include:\n.35 Remington (.358" diameter)\n.350 Remington Magnum (.358" diameter)\n.35 Whelen (.358" diameter)\nnot to mention rifles specifically chambered for either the 9mm or .38/.357 cartridges.\n\nNOTE: Most of the bullets used for the actual rifle cartridges can not be safely loaded into a 9mm or .38/.357 cartridge!\n\nMany shooters would load .358 pistol bullets in these larger rifles for very short-range, low velocity practice.
1108868
I prefer the 5,56 mm AR- M4SF , fits nice, great range, easy to clean. Hits harder than a paintball gun too. At 500 Meters it's not looking good for the "target".
315845
Rule of thumb, 4 one thousands of an inch (0.004") per one inch of diameter of the cylinder bore. Example: three and a half inch bore would be 0.014".
535039
7.92 x 57 mm, or commonly known as 8 mm Mauser, is the correct answer. Who-ever told these people that you could fire a .308 Winchester or 30-06 Winchester round through these weapons, is trying to get someone seriously hurt.
490217
go to gunpartscorp.com.com (numrich arms), and to make things simple order the catalog. you can find your gun and the parts that you need.\nif it is a m98 turkish mauser,(large ring)replace the barrel with a 45-70govt. barrel. with some modifications it makes an excellent shooter.
182282
The M16 is .223 Remington (5.56x45mm). The M1 was 43.5 inches long.
932268
Bound's hubby here:\n\nAnd people say creative writing is dead!\n\nFirst ... the .38 Special, .357 Magnum, and 9mm handguns and their respective ammunition are referred to as medium bores. \n\nThe .38 Special, being the oldest, was one of the first "true" medium bore smokeless powder cartridges. While the bullets fired from a .38 Special or .357 Magnum are typically .357 to .358 inches in diameter (9mm being .355 inches in diameter), the inside diameter of the barrel at the grooves is smaller in diameter, and the inside diameter at the lands (rifling) is even smaller in diameter ... this is necessary for the bullet to "fill" the lands and grooves to establish rotation of the bullet in order to achieve any degree of accuracy. \n\nThe earlier blackpowder medium bore cartridge was the .38-40 ... whose bullet was actually .40 cal. (firing a bullet .400 inches in diameter). \n\nThe other "medium bore" handgun prior to this was the .36 Navy, a cap and ball revolver that fired a bullet .351 inches in diameter. \n\nWith the exception of the .357 Magnum, none of the medium bores' names truely reflect the actual diameter of the bullet fired. The reason the .38 Special was named the .38 Special by Smith & Wesson (its developer) was to avoid identification with the .36 Navy ... which WAS a proprietary development of its competitor, "Colt". Performance-wise, the .38 Special was a significant improvement in reliability, performance, and accuracy over the .36 Navy ... and needless to say more modern ... S&W sought a unique identity for its first centerfire medium bore smokeless cartridge.\n\nAs an aside, with the exception of the .22, the .25 ACP, .357 Magnum, the .40 S&W, the .41 Magnum, and the vast variety of .45s, no handgun cartridge name truly reflects the actual diameter of the bullet. The 32 family = .312", the .38 family = .357, the .38-40 = .400", and the .44 family (even the mighty .44 Magnum) = .429".\n\nGood luck!