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9×25mm Dillon
The 9×25mm Dillon is a pistol wildcat cartridge developed for use in USPSA/ IPSC Open guns. The cartridge is made by necking down a 10mm Auto case to 9 mm. History Around 1987, Randy Shelley, an employee of Dillon Precision, necked down 10mm Auto brass to 9 mm. His goal was to get as much slow-burning powder in the case as possible in order to drive a 9 mm bullet to the velocity needed to qualify for the then-IPSC major power factor of 175. The short-necked and steep-shouldered cartridge holds twice the powder of a .38 Super Auto case. The 9×25mm Dillon was used by several notable IPSC shooters, such as Rob Leatham and Jack Barnes. Most shooters, looking at the 9×25mm Dillon today, focus on the extreme velocities of which it is capable. A 115 grain bullet at 1,800 fps is more than is needed for competition. There, a 115 only needs to be going a bit over 1,500 ft/s to qualify for major power factor. Competitors in the late 1980s and early 1990s who were using the 9×25mm D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rifling
In firearms, rifling is machining helical grooves into the internal (bore) surface of a gun's barrel for the purpose of exerting torque and thus imparting a spin to a projectile around its longitudinal axis during shooting to stabilize the projectile longitudinally by conservation of angular momentum, improving its aerodynamic stability and accuracy over smoothbore designs. Rifling is characterized by its twist rate, which indicates the distance the rifling takes to complete one full revolution, such as "1 turn in 10 inches" (1:10 inches), "1 turn in 254 mm" ("1:254 mm" or "1:25.4 cm)", or the like. Normally, an experienced shooter can infer the units of measurement from the numbers alone. A shorter distance indicates a faster twist, meaning that for a given velocity the projectile will rotate at a higher spin rate. The combination of length, weight, and shape of a projectile determines the twist rate needed to gyroscopically stabilize it – barrel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Factor (pistol)
Power Factor (PF) in practical shooting competitions refers to a ranking system used to reward cartridges with more recoil. Power factor is a measure of the momentum of the bullet (scaled product of the bullet's mass and velocity), which to some degree reflect the recoil impulse from the firearm onto the shooter (see section on limitations). Power factor is used in competitions sanctioned by the International Practical Shooting Confederation (IPSC), United States Practical Shooting Association (USPSA), Bianchi Cup, Steel Challenge and International Defensive Pistol Association (IDPA). Calculation The power factor is based on the bullet's momentum as it's moving through the air by measuring the ''bullet speed'' using a chronograph and measuring a similar ''bullet mass'' on a weighing scale, thereafter calculating the ''power factor'' by the formula: : = \cdot Units The ''power factor'' can be represented using different units: *The SI-unit newton-second (kgâ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Handgun Cartridges
List of handgun cartridges, approximately in order of increasing caliber. Table of handgun cartridges {, class="wikitable sortable" style="text-align:left" , - ! Cartridge name , , Bulletdiameter , , Caselength , , Cartridgelength , , Type , , class="unsortable", Source , - , 2.34mm rimfire (for Swiss mini gun), , , , , , - , , Rimmed, rimfire , , {{cite web, , - , 2.7mm Kolibri (2mm Kolibri, 2.7×9mm), , {{convert, .107, in, mm, abbr=on , , {{convert, .370, in, mm, abbr=on , , {{convert, .430, in, mm, abbr=on , , Rimless , , {{sfn, Barnes , 1997, p=274 , - , 3 mm Kolibri, , {{convert, .120, in, mm, abbr=on , , {{convert, .320, in, mm, abbr=on , , {{convert, .430, in, mm, abbr=on , , Rimless , , {{sfn, Barnes , 1997, p=274 , - , 4.25 mm Liliput (4.25 mm Erika), , {{convert, .167, in, mm, abbr=on , , {{convert, .410, in, mm, abbr=on , , {{convert, .560, in, mm, abbr=on , , Rimless , , {{sfn, Barnes , 1997, p=274 , - , .17 Hornady Mach 2 (.17 HM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Firearms
This is an extensive list of small arms—including pistols, revolvers, submachine guns, shotguns, battle rifles, assault rifles, sniper rifles, machine guns, personal defense weapons, carbines, designated marksman rifles, flamethrowers, multiple-barrel firearms, grenade launchers, anti-tank rifles, and any other variants. A * AA12 * AG87 *AK-47 * AK-74 * AKM * AK-12 * AK-101 * AK-102 * AK-103 * AK-104 * AK-105 * AKS-74u * AK-55 * AKV-521 * American-180 * AR-10 *AR-15 * AR-13 *AS VAL *AR-18 * AR-100 *AN-94 *AUG A1 * AUG A2 *AUG A3 *AUG A3 B BFG 50 Benelli C C7A2 D * Daewoo ** Daewoo K1 (South Korea – carbine – .223 Remington) *** Daewoo K1A (South Korea – carbine – .223 Remington) *** Daewoo MAX-1 (South Korea – semi-automatic carbine – .223 Remington) *** Daewoo XK1 (South Korea – carbine – .223 Remington: Prototype) ** Daewoo K2 (South Korea – assault rifle – 5.56×45mm NATO) *** Daewoo AR-100 (South Korea – assault rifle – 5.56×45mm NATO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
357 SIG
The .357 SIG (designated as the 357 Sig by the SAAMI and 357 SIG by the C.I.P. or 9×22mm in unofficial metric notation) is a bottlenecked rimless centerfire handgun cartridge developed by the Swiss-German firearms manufacturer SIG Sauer, in cooperation with ammunition manufacturer Federal Premium. The cartridge is used by a number of law enforcement agencies.''The Gun Digest Book of Sig-Sauer: a complete look at Sig-Sauer pistols.'' Massad Ayoob. 2004. pp. 51–53. History The .357 SIG is based on a necked-down 10mm Auto case. Other than specialized competition cartridges like the 9×25mm Dillon (1988), which necked a 10mm Auto case down to a 9 mm bullet, the .357 SIG (1994) was the first modern bottleneck commercial handgun cartridge since the early 1960s, when Winchester introduced a .257 caliber round based on the .357 Magnum, the now obsolete .256 Winchester Magnum (1960). Then Remington introduced the unsuccessful .22 Remington Jet (1961), which necked a .357 Magn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glock 29
Glock is a brand of polymer- framed, short recoil-operated, locked-breech semi-automatic pistols designed and produced by Austrian manufacturer Glock Ges.m.b.H. The firearm entered Austrian military and police service by 1982 after it was the top performer in reliability and safety tests. Glock pistols have become the company's most profitable line of products, and have been supplied to national armed forces, security agencies, and police forces in at least 48 countries. Glocks are also popular firearms among civilians for recreational and competition shooting, home- and self-defense, both in concealed or open carry. In 2020, the Glock 19 was the best selling pistol on GunBroker. History The company's founder, head engineer Gaston Glock, had no experience with firearms design or manufacture at the time their first pistol, the Glock 17, was being prototyped. Glock had extensive experience in advanced synthetic polymers, which was instrumental in the company's design of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glock 20
Glock is a brand of polymer-Receiver (firearms), framed, Recoil operation#Short recoil operation, short recoil-operated, locked-breech semi-automatic pistols designed and produced by Austrian manufacturer Glock Ges.m.b.H., Glock Ges.m.b.H. The firearm entered Austrian Armed Forces, Austrian military and Federal Police (Austria), police service by 1982 after it was the top performer in reliability and safety tests. Glock pistols have become the company's most profitable line of products, and have been supplied to national armed forces, security agencies, and police forces in at least 48 countries. Glocks are also popular firearms among civilians for recreational and competition shooting, home- and self-defense, both in concealed carry, concealed or open carry. In 2020, the Glock 19 was the best selling pistol on GunBroker.com, GunBroker. History The company's founder, head engineer Gaston Glock, had no experience with firearms design or manufacture at the time their first pis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glock 40
Glock is a brand of polymer- framed, short recoil-operated, locked-breech semi-automatic pistols designed and produced by Austrian manufacturer Glock Ges.m.b.H. The firearm entered Austrian military and police service by 1982 after it was the top performer in reliability and safety tests. Glock pistols have become the company's most profitable line of products, and have been supplied to national armed forces, security agencies, and police forces in at least 48 countries. Glocks are also popular firearms among civilians for recreational and competition shooting, home- and self-defense, both in concealed or open carry. In 2020, the Glock 19 was the best selling pistol on GunBroker. History The company's founder, head engineer Gaston Glock, had no experience with firearms design or manufacture at the time their first pistol, the Glock 17, was being prototyped. Glock had extensive experience in advanced synthetic polymers, which was instrumental in the company's design of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9×25mm Super Auto G
The 9×25mm Super Auto G, officially known as the 9 × 25 Super Auto G by C.I.P. and unofficially also known as the 9 × 25 Super Auto Grillmeyer, is an Austrian pistol cartridge. The 10 mm Auto cartridge has functioned as the parent case for the 9×25mm Super Auto G, which is essentially a necked-down version of the 10 mm Auto. The 10 mm Auto cartridge case was used for this since it has the capability to operate with relative high chamber pressures for its case capacity which, combined with smaller and hence lighter bullets result in very high muzzle velocities. History The cartridge got C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) certified in 1991. The 9×25mm Super Auto G is currently (2009) not commercially available and exists only as a C.I.P. datasheet. It might however still used by a few shooters who produce the cases from 10 mm Auto brass by reshaping the shoulder and neck, and handloading it with 9 mm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAAMI
The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI, pronounced "Sammy") is an association of American manufacturers of firearms, ammunition, and components. SAAMI is an accredited standards developer that publishes several American National Standards that provide safety, reliability, and interchangeability standards for commercial manufacturers of firearms, ammunition, and components. In addition, SAAMI publishes information on the safe and responsible transportation, storage, and use of those products. History The origins of SAAMI date back to World War I and the Society of American Manufacturers of Small Arms and Ammunition (SAMSAA). In 1913, the US War Department encouraged the firearms and ammunition industry to establish an organization to share new technology and establish common standards for small arms and ammunition. SAMSAA was officially formed in 1918, however became inactive by the early 1920s. By the mid-1920s the United States was still suffering ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percussion Cap
The percussion cap or percussion primer, introduced in the early 1820s, is a type of single-use percussion ignition device for muzzle loader firearm locks enabling them to fire reliably in any weather condition. This crucial invention gave rise to the cap lock mechanism or percussion lock system using percussion caps struck by the hammer to set off the gunpowder charge in percussion guns including percussion rifles and cap and ball firearms. Any firearm using a caplock mechanism is a percussion gun. Any long gun with a cap-lock mechanism and rifled barrel is a percussion rifle. Cap and ball describes cap-lock firearms discharging a single bore-diameter spherical bullet with each shot. Description The percussion cap is a small cylinder of copper or brass with one closed end. Inside the closed end is a small amount of a shock-sensitive explosive material such as mercuric fulminate (discovered in 1800; it was the only practical detonator used from about 1850 to the early 20th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
