has a 5,000 PSI greater max pressure than the .40 S&W, at 35,000 PSI. I understand that both cartridges are loaded to the same pressure. Velocity Range: Varies by Case – PMC 903 fps average – S&B 888 fps average – Winchester 915 fps average Produced .310″ 3 Shot Groups at 100 Yards with S&B Case Shot out of our .357 Magnum Chamber More Range Life. Just Right Carbines began in Upstate New York with the goal of engineering a simpler, accurate, more reliable and flexible carbine using common pistol calibers and popular magazines. 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 Cartridge Co..The cartridge is used by a number of law enforcement agencies and … This round was created back in 1994 not so very long ago, and was designed by SIG-Sauer. ToddG. The following is a press release from Just Right Carbines. My first experience with the .357 SIG … Why the .357 SIG is So Amazing. If you want power and performance in an autoloading pistol, then the Hornady Critical Duty .357 Sig delivers. The test gun we chose is a Gen 3 Glock 31 with a 4.49-inch barrel. December 14, 2015. [bc-description action="new description"] Technical Information Caliber: 357 Sig Bullet Weight: 125 Grains Bullet Style: Speer Bonded Jacketed Hollow Point Case Type: Ducta-Bright 7a Nickel Plated Brass Ballistics Information Muzzle Velocity: 1475 fps Muzzle Energy: 604 ft lbs [bc-description action="end description"] Sponsored Post. Last week we tested Sig-Sauer .357mag 125gr V-Crown from a revolver. Slide velocity is usually slower with most .357 SIG rounds vs. .40 and should be easier on the frame as a result. Try finding a Marlin M1894 in 41 Magnum. jacketed hollow points (JHPs) and jacketed soft points (JSPs) both … The very short neck is designed to use 9mm/0.355″ bullets but this does not mean .357 SIG cases can be made from .40 S&W brass. This a chart with several 357 Sig Factory Rounds measured with RCBS ammo-master chrono at 2-3 yards and ballistic gel target at 8 yards. V-Crown has a history of failing to expand when fired through heavy clothing and even at .357 mag velocity it still failed. The .357 SIG. Inescapably, the .357 Sig is a much more powerful cartridge. The .357 SIG (designated as the 357 Sig by the SAAMI and 357 SIG by the C.I.P. Since the .357 Sig is a necked down 40 S&W a carbine using interchangeable barrels-like the SIG SHR-makes sense to me. The Henry Big Boy Steel carbine in .357 Magnum/.38 Special may the handiest little rifle in the history of the world ever. However, I’ve also seen that velocity increase is widely variable based on the load being measured. I don’t really know why, I just think it’s cool. That was not the real velocity, of course, but that was what everyone used as their goal, their aspirational speed, if you will. Mr. Walsh showed us the new Corporate Arms SMG AR-format submachine gun and semi-auto-only carbine, which takes Glock magazines, and is avaliable in 9mm Parabellum/9x19mm NATO, .40 S&W, .357 SIG .45 ACP and 10mm Auto calibers. Home / Handgun Ammo / 125 Grain American Eagle 357 SIG FMJ – 50 Rounds. The .357 Sig is a very fast round much faster than the 380, 9mm, 40, 10mm,45 ACP, and even the large 357 Cartridge. The P229 was the first model made at Sig’s U.S. plant in Exeter, New Hampshire, and it’s one of the company’s most popular models as a mid-sized pistol that works well for open and concealed carry. .357 Sig (center) was developed from a 10mm case (right) necked-down and shortened to accept a 9mm bullet (left). for 125 grainers and 490 for the 147-grain bullets. This technology utilizes the hyper velocity to transfer enormous energy based on mass-energy equivalence, E=1/2MVSq. I have zero experience with the .357 SIG, it seems to be a "cult" cartridge, like the .41 Magnum-which I like. Perhaps unsurprisingly, it did not do well. That would/could affect minimum chamber wall thickness and breach-block weight. Since those humble beginnings, JRC now has more than 45,000 firearms in the field and an ever-growing group of devoted followers. Critical Duty 9mm vs. 357 Sig Comparison To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps. With light loads, it boosted a truly anemic .38 Special cowboy load up to +P velocities, and it gave the .38 Special +P equivalent load a 20 percent velocity increase. I thought that higher velocity was everything I wanted when I started handloading a variety of powders and bullets for a .357 Magnum Uberti Lightning Short Rifle pump action with a 20 … The .357 Magnum is a useful and fun cartridge when fired from a revolver. It was created by Elmer Keith, Phillip B. Sharpe, and Douglas B. Wesson of firearms manufacturers Smith & Wesson and Winchester.. 125 Grain American Eagle 357 SIG FMJ – 50 Rounds $ 41.99. 11-19-08, 20:03. It is based upon Smith & Wesson's … Both were designed for semi-automatic handguns, both use a projectile that has a diameter of 355/1000 of an inch, and with modern bullet designs, i.e. Given that the system pressure of each cartridge is fixed to some value determined by SAAMI, any increase in bullet weight or velocity will both increase the muzzle energy, but will also increase the chamber pressure. P229 Nitron .357 SIG. Tim. Which is More Powerful .357 SIG or .45 ACP? I think that 9mm SIG would have went over like a lead Zeppelin so the .357 SIG moniker was chosen, obviously to play upon the legendary .357 Magnum. .357 Carbines Rock. Test Gun: Glock 31… kind of. (thats where the name comes from). Shot from the longer barrel of a rifle, though, the .357 shows a pronounced improvement in velocity and trajectory. One things is for sure about the .357 Sig cartridge: velocity makes a big difference. By Tom McHale. Aero Survival Rifle - 357 SIG Velocity Testing Brian performs velocity testing with our Aero Survival Rifle 357 SIG Prototype. With the loads we tested, the extra barrel length of the .357 carbine paid handsome dividends. The 9mm vs. In .357 SIG, it carries 12 rounds in its steel, double-stack magazines—twice what a traditional six-shot .357 Magnum totes. The .357 Sig is way ahead at 506 ft.-lbs. The .357 SIG is a necked down 10mm, or a a necked down .40 S&W depending on how you want to look at it. The new guns will be chambered in 10mm and .357 SIG. It’s a bottleneck cartridge, basically a .40 S&W necked down to .357. The 125gr HST in .357 Sig also met the FBI’s penetration guidelines. The Sentry 12: A New Kind of Shotgun. Weighing in at a total of 6.5lbs and two inches shy of three feet in length, it’s a breeze to carry all day, and maneuvers easily in the tight Dewberry thickets and cedars, where I find most of my hogs. .357 Sig.357 Mag.40 S&W; 10mm.41 Mag.44 Special.44 Mag.45 ACP ('08).45 ACP ('15).45 Colt.45 Super.460 Rowland.223 Rifle Acknowledgements. ... Muzzle Velocity… Higher velocity and pressure may wear out the barrel marginally faster, though. As such it has a devoted-but small-following. Well, technically, it’s a Gen 3 Glock 22 (originally chambered in .40 S&W) with a Glock factory .357 Sig barrel and magazine. With JSPs or JHPs, the M1 carbine has ample stopping power against ne'er-do-wells within reasonable ranges, as does the .357 magnum. Velocity. It's really just that simple. It’s tough to find a .357 Sig load that doesn’t expand, even after encountering barriers..357 Sig is my favorite pistol cartridge. This ammo is available on our partner site by clicking the below buy button. That does not make it … The .357 Smith & Wesson Magnum, .357 S&W Magnum, .357 Magnum, or 9×33mmR as it is known in unofficial metric designation, is a smokeless powder cartridge with a .357-inch (9.07 mm) bullet diameter. Brian performs velocity testing with our Aero Survival Rifle 357 SIG Prototype. While I agree that a .357 Sig. A .30 Carbine from an 18" barrel yields roughly double the energy of a .357 magnum from a revolver. The .357 SIG is simply a .40 caliber Smith and Wesson necked down to 9mm. Glock 31 357 SIG Fixed Sights Full Size Pistol w/ 2-10 Round Mags - $580.49 $580.49 The high-performance GLOCK 31 is characterized by extremely high muzzle velocity and superior accuracy, even at extended shooting distances. Trusted by law enforcement for decades, now Just Right Carbines offers that same .357 Sig power and performance in a Glock magazine Home Defense Carbine. Latest. The .357 SIG has been around now for about 25 years. Gun Reviews. The .357 SIG also features a bottlenecked design, which is easier to load into the barrel chamber of your pistol and has the added perk of traveling at an increased velocity. Categories: 357 SIG, Handgun Ammo Tag: 357 sig. The projected velocity of the 125 JHP was 1,450 fps. The rounds expanded to about 0.60 inches, but had a higher muzzle velocity of 1300+ FPS. The cartridge designed to allow for near-.357 Magnum ballistics in a semiautomatic pistol deserves your consideration for self defense. See below for details on the .357 SIG Just Right Carbine. Rimfire Power. In my testing of 9mm and .40 S&W carbines, the increased velocity (as compared to typical handguns) from the longer barrels can be significant. However, it becomes a much fairer fight when the .357 magnum is chambered in a carbine. entry would be a lot easier because it could be "based" more easily upon the existing .40 S&W entry, one thing to remember is that, at 40,000 PSI, the .357 Sig. If your goal is to get high penetration, the .357 SIG round is the more powerful option when compared to the .45 ACP round. As well it should have. Gun used: Springifled XD Service model (4″ barrel) chambered in 357 Sig Dies used: Lee Precision 3 die set for 357 Sig, Hornady 9mm bullet feed die, RCBS 40 S&W carbide sizing die, and Lee Precision FCD Press used: Lee Precision Load Master + Lee Reloading Press (the Load Master only has 5 stations so I put the FCD in the single stage) And finally, saying the 9mm +p+ and +p++, etc "approach" the ballistics of the 357 SIG and/or MAG would be akin to making the claim that a 357 MAG fired from a lever action carbine "approaches" the muzzle velocity of the 223/5.56mm. 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