| 357 SIG |
.357 SIG (third from left) in comparison with other cartridges | | Type | Pistol | | Place of origin | United States | | Production history | | Designer | SIGARMS/Federal Cartridge Co. | | Specifications | | Case type | Rimless, bottleneck | | Bullet diameter | .355 in (9.02 mm) | | Neck diameter | .381 in (9.68 mm) | | Shoulder diameter | .424 in (10.77 mm) | | Base diameter | .424 in (10.77 mm) | | Rim diameter | .424 in (10.77 mm) | | Rim thickness | .055 in (1.4 mm) | | Case length | .865 in (21.97 mm) | | Overall length | 1.14 in (28.96 mm) | | Primer type | Small pistol | | Ballistic performance | | Bullet weight/type | Velocity | Energy | | 115 gr JHP | 1564 ft/s
(~477 m/s) | 624 ft·lbf
(~849 J) | | 124 gr JHP | 1329 ft/s
(~405 m/s) | 486 ft·lbf
(~661 J) | | 125 gr JHP | 1299 ft/s
(~396 m/s) | 468 ft·lbf
(~636 J) | | 147 gr JHP | 1186 ft/s
(~362 m/s) | 459 ft·lbf
(~624 J) | | 150 gr JHP | 1130 ft/s
(~345 m/s) | 425 ft·lbf
(~578 J) | Test barrel length: 4 in
Source: Steve's 357 SIG Ballistic Page | The .357 SIG pistol cartridge is the product of Swiss firearms manufacturer SIG-Sauer, in cooperation with the American ammunition manufacturer Federal Cartridge. SIGARMS, in partnership with Federal Cartridge, developed the 357 SIG cartridge in 1994. While it is based on a .40 S&W case necked down to accept .355 inch bullets, the .357 SIG brass is longer. See the Handloading section for more information. Image File history File linksMetadata 9mm_7,62mm_357sig_10mm_45SW_45GAP_50AE_002. ...
A Browning 9 millimeter Hi-Power Ordnance pistol of the French Navy, 19th century, using a Percussion cap mechanism Derringers were small and easily hidden. ...
SIGARMS is the US representative of Swiss manufacturing firm Swiss Arms AG, which was split off of Schweizerische Industrie Gesellschaft (SIG) in 2000. ...
// On April 27th, 1922, Charles L. Horn took control of a small plant in Anoka, Minnesota and founded Federal Cartridge Corporation. ...
This article is about firearms projectiles. ...
The percussion cap or primer was the crucial invention that enabled firearms to fire in any weather. ...
A grain is a unit of mass equal to 0. ...
.357 Magnum rounds. ...
Feet per second is a unit of speed; it expressses the number of feet traveled in one second. ...
Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. ...
The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
A grain is a unit of mass equal to 0. ...
.357 Magnum rounds. ...
Feet per second is a unit of speed; it expressses the number of feet traveled in one second. ...
Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. ...
The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
A grain is a unit of mass equal to 0. ...
Feet per second is a unit of speed; it expressses the number of feet traveled in one second. ...
Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. ...
The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
A grain is a unit of mass equal to 0. ...
Feet per second is a unit of speed; it expressses the number of feet traveled in one second. ...
Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. ...
The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
A grain is a unit of mass equal to 0. ...
Feet per second is a unit of speed; it expressses the number of feet traveled in one second. ...
Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector), defined by distance in metres divided by time in seconds. ...
The foot-pound force (symbol: ft·lbf) is an English unit of work or energy from the English Engineering System. ...
The joule (IPA: or ) (symbol: J) is the SI unit of energy. ...
A Browning 9 millimeter Hi-Power Ordnance pistol of the French Navy, 19th century, using a Percussion cap mechanism Derringers were small and easily hidden. ...
Rimmed, centerfire . ...
A firearm is a kinetic energy weapon that fires either a single or multiple projectiles propelled at high velocity by the gases produced by action of the rapid confined burning of a propellant. ...
Schweizerische Industrie Gesellschaft (German for Swiss Industrial Society), or SIG, is the former name of SIG Holding AG a Swiss company that has been active in various businesses during its more than 150 years of operation. ...
Ammunition, often referred to as ammo, is a generic term meaning (the assembly of) a projectile and its propellant. ...
Located in Anoka, Minnesota, Federal is a wholly-owned subsidiary of Edina, Minnesota-based ATK, Alliant Techsystems. ...
SIGARMS is the US representative of Swiss manufacturing firm Swiss Arms AG, which was split off of Schweizerische Industrie Gesellschaft (SIG) in 2000. ...
The . ...
The . ...
History
The new cartridge was dubbed a "357" in order to highlight its purpose: to duplicate the performance of 125-grain .357 Magnum loads fired from 4-inch barreled revolvers, except in a cartridge designed to be used in a semi-automatic pistol. “.357†redirects here. ...
Revolver is also a rock-and-roll album by The Beatles. ...
This article does not cite any references or sources. ...
Until the .357 SIG, handgun owners looking to match the performance of a 125 gr .357 Magnum bullet in a semi-automatic pistol did not have any practical choices. There were some chambered for .357 Magnum: the Desert Eagle and Coonan, but due to the difficulty of designing a semi-automatic pistol that can reliably feed the rimmed .357 Magnum cartridge, they were impractical because of their size and cost. The Desert Eagle is a large calibre gas-operated semi-automatic pistol manufactured in Israel by IMI (Israel Military Industries) for Magnum Research, Inc. ...
Development of the .357 SIG provided access to a self defense cartridge that would come close to the performance of a 125 gr .357 Magnum load from a smaller, and more concealable semi-automatic pistol.
Conversions Most .40 S&W pistols can be converted to .357 SIG by replacing the barrel, and sometimes the recoil spring. Pistols with especially strong recoil springs can accept either cartridge with a barrel change. Magazines will freely interchange between the two cartridges. .357 SIG barrel kits have allowed this cartridge to gain in popularity among handgun owners. However, the .357 SIG is loaded to higher pressures than the .40 S&W (a difference of up to 5,000 psi at top loads), and may not be suitable for use in all .40 S&W-chambered pistols. A pressure gauge reading in PSI (red scale) and kPa (black scale) The pound-force per square inch (symbol: lbf/in²) is a non-SI unit of pressure based on avoirdupois units. ...
Characteristics The goal of the .357 SIG project was to offer at least the level of performance of lighter .357 Magnum loads and +P/+P+ 9mm Parabellum loads. The .357 SIG accomplishes this goal with a 125 grain (8.1 g) bullet. Using heavier bullets, however, shows the cartridge somewhat inferior to the original Magnum. The recoil of the .357 SIG cartridge is strong, often noticeably more so than the .40 S&W, but is not as harsh as full-power 10mm Auto loads or the original .357 Magnum. Image File history File links No higher resolution available. ...
Image File history File links No higher resolution available. ...
Overpressure ammunition, commonly designated as +P or +P+, is small arms ammunition that has been loaded to a higher internal pressure than is standard for ammunition of its caliber (see internal ballistics), but less than the pressures generated by a proof round. ...
Ball and hollowpoint 9mm Luger rounds are popular handgun ammunition. ...
The 10 mm Auto pistol cartridge is the child of the famous firearms expert Jeff Cooper. ...
Like the 10mm Auto, the .357 SIG can be down-loaded to reduce recoil, to the point where recoil is similar to that of a 9mm Parabellum. However, since the .357 SIG uses bullets that are generally the same as those used in the 9mm Parabellum,[1] downloading it to this point would defeat the purpose of having the SIG cartridge in the first place, as recoil and ballistics would be identical to the less-powerful 9mm cartridge.
Because the .357 SIG fires at relatively high pressures, both muzzle flash and noise are significant with standard loads, even when using longer barrels. Utilizing loads with specialized powders to reduce flash and experimenting with different bullet weights can reduce flash.
Handloading Although the .357 SIG design is based on the .40 S&W case, handloaders cannot form .40 S&W cases into .357 SIG brass. While the two cases are identical in rim diameter, using the .40 S&W case will result in a case that is approximately 0.020 in (0.508 mm) too short. Unlike most bottlenecked cartridges, the .357 SIG headspaces on the case mouth;[1] cartridges that are too short can result in serious malfunctions, possibly leading to serious injury. Furthermore, the SAAMI limit for the .40 cartridge is set at 35,000 PSI, but at 40,000 PSI for the .357 SIG. // Handloading or reloading is the process of loading firearm cartridges or shotgun shells by assembling the individual components (case/shotshell, primer, powder, and bullet/shot), rather than purchasing completely assembled factory loaded cartridges. ...
Saami or SAAMI can stand for: Sami peoples Sporting Arms and Ammunition Manufacturers Institute This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
Psi has multiple meanings: Psi (letter) (Ψ, ψ) of the Greek alphabet Psi (Cyrillic) (Ѱ, ѱ), letter of the early Cyrillic alphabet, adopted from Greek Psi (parapsychology) Psi (instant messaging client), a popular Jabber client program J/ψ particle, a subatomic particle Wavefunction in Quantum Mechanics, ψ In mathematics, Ψ is used to denote the angle between...
While some individuals have attempted to form .357 SIG cases from 10mm Auto cases, this is rather impractical. First of all, the change in primer type (10mm uses large pistol primers, .357 SIG uses small pistol primers) would require that known recipes be scrapped, and second, the cost of using expensive 10mm brass for such a purpose would certainly defeat the goal of saving money by reloading. Both unfired and once-fired .357 SIG brass are readily available from several well-known vendors, at a low cost.
Choosing the correct bullet type is extremely important when handloading the .357 SIG cartridge. The short neck of the casing makes the use of standard round-nosed bullets impractical. There is simply not enough flat area for the neck to "grip" the bullet. For this reason, flat point bullets are used instead. Various 9mm hollow-point bullets can also be successfully used, but due to the wide variety of choice, the chances of success vary from one brand to another. .357 Magnum rounds. ...
Performance Because of its relatively high velocity for a handgun round, the .357 SIG offers a very flat trajectory, which in turn allows the firearms chambered for it more effective range. However, it does not quite reach the performance of the venerable .357 Magnum with bullets heavier than 125 grains, or with typical commercial loadings using 125 grain bullets (e.g., fired from a four-inch barrel, a typical commercial .357 Magnum load propels a 125-grain bullet to 1450 ft/s, while a typical .357 SIG load propels the same bullet to 1350 ft/s). Specialty loads, such as Double Tap Ammunition, are able to propel a 125-grain bullet to 1450 ft/s from a four-inch barrel. Offsetting this general slight disadvantage in performance is the fact that semi-automatic pistols tend to carry considerably more ammunition than revolvers.
However, this comparatively high velocity can also create the potential for overpenetration. The .357 SIG, much like the .357 Magnum and the similarly necked 7.62mm Tokarev, is well-suited for use with bullets that are designed to defeat body armor. Also like the Tokarev, the .357 SIG works well when shooting through barriers. There has been a documented case in Texas where a police officer's .45 round did not penetrate a tractor-trailer's shell, but a .357 SIG round from a backup officer's gun did, killing the suspect inside.[2] The round's ability to penetrate barriers is the main reason for its adoption by law enforcement agencies. Side-by-side comparison to other cartridges. ...
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The myth that the .357 SIG round loses its crimp (allowing for bullet setback) was partially true when the cartridge was new and ammunition manufacturers were just beginning to produce the round. These problems have since been corrected by major manufacturers. As a result, the round now exhibits nominal setback characteristics, similar to other cartridges.
The bottleneck shape of the .357 SIG cartridge makes feeding problems almost non-existent. This is because the bullet is channeled through the larger chamber before being seated entirely as the slide goes into full battery. Flat point bullets are seldom used with other autoloader platforms because of feeding problems; however, such bullets are commonly seen in the .357 SIG chambering and are quite reliable, as are hollow-point bullets.
One disadvantage of the .357 SIG is that it fires a .355" bullet at higher velocities than most bullets of that caliber are designed for. Very few bullets have been designed specifically for the .357 SIG, and .357 Magnum bullets that are designed for the same velocity range cannot be used due to their slightly larger diameter. Because of this, there are fewer ammunition choices in .357 SIG than one might expect for a cartridge using .355" bullets.
Another drawback of the .357 SIG is its often harsh treatment of the pistols that are chambered for it. Many are designed to fire the .40 S&W and are later modified for use with the .357 SIG. Firing regularly at pressure levels effectively beyond what the pistol was originally engineered for tends to translate to accelerated wear on the firearm.
The "Accurate Powder" reloading manuals claims that it is "without a doubt the most ballistically consistent handgun cartridge we have ever worked with."[3]
Implementation The SIG-Sauer P229 in .357 SIG is currently the standard issue firearm carried by agents of the United States Secret Service and Federal Protective Service, the North Carolina State Highway Patrol, Virginia State Police, Tennessee Highway Patrol - Glock 31, Federal Air Marshals, and various other local and state departments. In most cases, it has replaced 10mm/.40 S&W and 9mm loads. In 1995, the Texas Department of Public Safety became the first government agency to implement the .357 SIG. The Schweizerische Industrie Gesellschaft (SIG)-Sauer P226 is a full-sized, service type pistol originally chambered for 9 mm Luger. ...
It has been suggested that this article or section be merged with Counter Assault Team. ...
Federal Protective Service is a title used in a number of countries In the United States the FPS is responsible for the security of Federal buildings. ...
Virginia State Police is a state agency, established in 1919, that acts as the state police force for the Commonwealth of Virginia. ...
It has been suggested that this article or section be merged with Tennessee Bureau of Investigation. ...
The Federal Air Marshal Service (FAMS) is a law enforcement agency of the United States federal government. ...
Year 1995 (MCMXCV) was a common year starting on Sunday (link will display full 1995 Gregorian calendar). ...
The Texas Department of Public Safety (DPS) is a department of the government of the state of Texas. ...
See also Located below is an extended list of small arms, ranging from pistols to machine guns and even to large handheld devices such as grenade launchers and anti-tank rifles. ...
Common handgun cartridges. ...
This article lists firearm cartridges which have a bullet in the 9 mm (.354 in) caliber range. ...
References - ^ a b Lyman Reloading Handbook, 48th edition, 2002, Lyman Products Corp.
- ^ Ayoob, Massad. (2002). The Gun Digest Book of Combat Handgunnery, 5th edition: Krause Publications. ISBN 0-87349-485-7
- ^ ".357 SIG" data from Accurate Powder
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