, with Kentucky State Troopers giving it the nickname “, ” and Texas State Troopers claiming that it had some sort of “. Chronograph Readings. And speaking of versatility…. Both 9mm and .357 Sig ammo are basically in 124 or 125-grain bullet sizes with a .355 diameter. If you’re on the fence whether or not you should spend your hard-earned dollar on a gun chambered for a specific caliber, the best piece of advice we can give you is to determine your purpose. 357 Sig is a proprietary cartridge developed by Sig Sauer, the ginormous gun company. This makes the .357 Magnum more affordable, more accessible, and consequently more versatile than the .357 SIG as a  shooting platform. But this is the Colt Python, a legendary revolver that has been dead for a long time. HST Comparison Over the years, this load earned a reputation for its one-shot stops, with Kentucky State Troopers giving it the nickname “the magic bullet” and Texas State Troopers claiming that it had some sort of “lightning bolt effect” on criminals who were hit in non-vital body parts — it just stopped them on their tracks as if they were struck by lightning. They called this cartridge the .357 SIG — an homage to the revolver caliber whose ballistics it attempts to mimic. The idea was to duplicate the power of a 125 grain .357 Magnum round in a semi-automatic pistol. But if you’re in an environment where concealment isn’t required and you need superior firepower in the smallest possible package, a .357 Magnum revolver with a long enough barrel and loaded with the right ammo for the job is the bee’s knees. Back to the .357 SIG, the heaviest bullet commercially available at the moment is Double Tap’s 180-grain Hardcast Solid. Later that same year, Norma Precision started producing the 10mm. A semi-auto handgun by design has a recoil spring that utilizes some of the force of the recoil (i.e. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. The cartridge case had to be lengthened a little so it wouldn’t chamber in any .38 Special revolver. That, and some people on the Internet say that the .357 SIG, being it was made to duplicate the ballistics of the .357 Magnum, is as powerful, if not more. But he has yet to make up his mind on whether or not he should get one, because he’s already got a Glock 31. compared to Keith’s and Sharpe’s original loads but were still more than good enough for law enforcement use. You can use .38 Special in a .357 magnum gun, but not 357 SIG Adding to the above, the compatibility of .38 Special and .357 Magnum. And it’s a well-deserved win for this old-timer too. and law enforcement agencies, some of which are: Immigration and Customs Enforcement (ICE), Customs and Border Protection (CBP), Federal Protection Service (FPS), Federal Air Marshal Service (FAMS). Keith’s efforts proved that the .38-44 Heavy Duty and Outdoorsman N-frame revolvers could safely chamber and shoot much more powerful .38 Special cartridges than the ones Remington manufactured. In a smaller gun like the Glock 33 you have a wonderful little concealed carry piece with nine rounds in the magazine. From the late 1920s to early 1930s, the two gentlemen experimented with various bullet and powder types and weights, little by little pushing the .38 Special cartridge case well beyond its established pressure limits. wheelguns that come with two cylinders out of the box: one for .357 Magnum/.38 Special, another for 9mm Parabellum. This isn’t a Top 10 type of post so we’re not comparing guns on their mechanical merits and disadvantages. This new shooting platform instantly dethroned Colt’s 1911 in .38 Super and became the most powerful handgun in the world, as Sharpe’s 160-grain solid bullets were reportedly able to achieve previously unheard of velocities of anywhere between, The Model 27 became an overnight success, even with its initial unrealistically high price with both law enforcement and civilians. The .357 SIG can also be loaded to higher pressures than the .40 S&W. All .357 SIG handguns can be converted to shoot .40 S&W, its sister caliber, but it will require a barrel swap (and sometimes the recoil spring has to be changed too for 100% reliability). The ammo is manufactured by Grizzly Cartridge Company and has an advertised velocity of 1,300 feet per second that will result in a muzzle energy of 750 foot-pounds of force. Sw 686 is ok, but, short barrel 357 revolvers are painful to shoot. 10mm generally packs higher muzzle energies thanks in large part to the larger bullets. Colt, after being tight-lipped about one of their biggest snake gun resurrection projects for the last five years, has finally unveiled what many consider to be their most respected revolver from what seemed like a lifetime ago: the Colt Python. The target velocity was at least 1,200 feet per second. The .357 Magnum Hornady 125 grain XTP bullet averages 1,500 fps and 624 ft lbs of energy while the 124 grain XTP .357 Sig round turns out 1,350 fps and 502 ft lbs. It’s around two thousandths of an inch narrower, which means if you’re planning to reload, a bullet meant for the .357 magnum will not fit in a 357 SIG case. This event pushed many ammo manufacturers to produce 10mm FBI loads (or “10mm Lite” as older folks call it). So as far as versatility, the .357 Magnum wins. Both platforms allow for a dual-caliber setup, but one is more expensive than the other. , Ruger’s Blackhawk Convertible and Taurus’ Model 692 to name a few. Since 2001, we have provided the latest in gun rights news, tech reviews and product information. All .357 SIG handguns can be converted to shoot .40 S&W, its sister caliber, but it will require a barrel swap (and sometimes the recoil spring has to be changed too for 100% reliability). There’s. They called this cartridge the .357 SIG — an homage to the revolver caliber whose ballistics it attempts to mimic. Underwood Ammo 357 Sig 125 Grain Bonded Jacketed Hollow Point. Sig 357 autos are not a pain in the hand to shoot. The .357 Sig was desigend to address a very real problem, the problem of a non-ezistant handgun cartridge that is a very effective manstopper in all cases, conditions and situations. But strangely, the caliber never caught on in the civilian market in terms of popularity. The FBI’s Firearms Testing Unit (FTU) found the recoil a little too much to handle especially for agents with smaller stature. But the aforementioned Colt Python’s resurrection got him a bit interested again — he’s just not 100% convinced  that he needs one just yet (and news of current production Pythons having issues with the cylinder clockwork isn’t making things easy for him too). Why should you choose an AR pistol or AR rifle? For those who want quality .357 Sig brass, Capital offers once-fired 357 Sig reloading brass for sale in 250-, 500- and 1,000-piece lots of mixed-headstamp casings. Here’s a quick list of 357 SIG vs 357 Magnum: It’s interesting to note that both the cheapest and the most expensive guns on the list are chambered in the .357 Magnum (the Glock 31 is currently priced the same as the Taurus 692 but the latter’s street price is typically much lower than what it retails for). Colt, after being tight-lipped about one of their biggest snake gun resurrection projects for the last five years, has finally unveiled what many consider to be their most respected revolver from what seemed like a lifetime ago: the, Recently, one of our readers (let’s call him Bob) emailed me with a rather commonly asked question on a much debated topic, one I usually shy away from because there are just too many arguments surrounding it (and I’m sure a few of our wheelgun-loving regulars know of my biases as far as handgun calibers, Bob didn’t sound like the type who’s into debates. ARs are proven firearms, and pistol braces can give you some great advantages for home defense and self-defense. It has something for everyone, even those who hate revolvers. But that’s it. Fifteen rounds of 125-grain .357 SIG will generate a total of 8,745 foot-pounds of force, while eight rounds of Phil Sharpe’s original .357 Magnum load will produce a total of 7,272 foot-pounds of force. , all things considered, the winner of this Handgun Caliber Showdown is the .357 Magnum. This platform showed promise, but a growing community of individuals passionate about the .38 Special knew that the .38 Special was capable of so much more. This presented a problem: law enforcement and civilians wanted the high capacity magazines 9mm handguns offered. The good thing about using this size projectile is superior penetration—sometimes to the point of over-penetration. But it’s one odd duck in the revolver world that very few cared about so after making five hundred pieces, the manufacturer had to discontinue production. If you factor in that some states have a magazine ban of anything over ten rounds, and there are some .357 revolvers out there like the Smith & Wesson 627 and the Taurus 608, then the ammunition capacity starts to close the gap. Multi-caliber .357 Magnum revolvers have been seeing a resurgence in the past couple of years, i.e. To use the logic that 9mm is as good as the .357 Sig is the same as saying the .38 Special is as good as the .357 Magnum. Better yet, get a lever-action rifle in that caliber. Does it? AR Pistol vs. AR Rifle: What Should You Pick? I’ve personally read an article written by an expert gunsmith claiming that the .357 Sig can be even more powerful than the .357 Magnum (I have great respect for the guy and his works — very few people can do revolver customization the way he does — but his claim is a hard pill to swallow). It centered around a cartridge that would outperform the .45 ACP using a 200-grain, .40-caliber bullet seated in a straight-walled rimless cartridge for use in a semi-automatic pistol with a nominal 5-inch barrel. The following ammunition cartridge ballistics information and chart can be used to approximately compare 10mm Auto vs .357 SIG ammo rounds. The performance of most common charges .357 SIG are tied with the brightest .357 Magnum. Unfortunately their lofty goal was never quite achieved. Jacketed hollow point 9mm bullets will expand much sooner than expected when fired from .357 SIG brass, resulting in less penetration. the .357 sig vs. the 9mm. If you don’t like revolvers but you want to shoot full-power 357 Magnum rounds, you can get a Coonan pistol. Getting down to the nitty gritty, the .357 Sig was a fantastic idea on paper, but like so many good ideas in concept in the real world it just didn’t pan out for the better when you can get the same size pistol in .40 S & W. Factor that in when you put it toe to toe against the .357 Magnum, which has a well deserved reputation as a manstopper, and it clearly loses in every category that matters. Yes, you read that right. Barrel Length – 4.49 in. The 357 Magnum with 125 gr bullet is legendary for one stop shots. I think that Is the most lively down than most other similar series. Even a Glock 33 "pocket rocket" performs well with the rounds available. The caliber is designed to replicate the performance of a 125 grain 357 Magnum load(hence the number in its name) when fired from a 4” revolver barrel, and also to be used in a semi-automatic handgun with a greater capacity than a revolver could offer. Don’t get me wrong, the .357 Sig is a good defense round, certainly better than the 9mm on any day. By comparison, there are countless companies manufacturing revolvers (take a look at this other article I wrote if you want to know what options are available to you) and lever-action rifles chambered for the .357 Magnum. those with bullets measuring anywhere from .355 inch to .357 inch in diameter. Robert101 Member. The Registered Magnum, chambered for the powerful new cartridge developed by Phil Sharpe and manufactured by Winchester — the .357 Magnum. In case you have never heard of the .357Sig, The Sig Sauer Firearms Company was asked back in 1994 by Federal to collaborate on a hot new cartridge that rivaled the venerable .357 Magnum in ballistics. Back in the 1990s, the folks at Sig Sauer dreamed up this caliber with the goal of replicating the proven performance of a 125-grain .357 Magnum fired from a four-inch barrel. In came former U.S. marine and handguns expert Lt. Col. John Dean “Jeff” Cooper.eval(ez_write_tag([[300,250],'gunnewsdaily_com-medrectangle-4','ezslot_3',130,'0','0'])); The idea of the 10mm cartridge was originally conceived by Jeff Cooper, himself a .45 ACP purist, in 1983. In power and performance the .357 Sig tries to be better than it really is, and while it is good it is not good enough to justify the claim of being equal to the .357 Magnum. Not too shabby partner but against the .357 Magnum the .357 Sig is still lacking, and that’s where the old revolver cartridge really wins hands down. Not much is known about the .357 SIG’s early development except that it was a result of a collaboration between SIG Sauer and Federal. by around 60 feet per second). It would be nice to carry that caliber in a semi-auto but I shied away from 357 SIG because of the high cost of commercial ammo and reports of it being a problematic cartridge to reload. A 357 SIG 125 gr JHP from a Glock 31 at 1425 fps or A 45 Auto 185 gr JHP from any 1911 at 1150 fps or ... but the 125g .357 magnum just seems to have such a wicked effect on humans, and the 125g .357Sig does seem to duplicate that effect in a semi round. The 357 SIG round was designed to fit in a semi-auto pistol but duplicate the ballistics of the longer 357 Magnum revolver round. Glock Gen 4 Model 31 357 Sig. He would eventually work closely with Col. Dan B. Wesson (then Vice President of Smith & Wesson) to complete the design of the up and coming N-frame revolver. He had long ago made the decision not to purchase a revolver chambered for the former. Things don’t fare any better for the Sig when the larger bullets are used, the 147 grain XTP round is traveling at 1,225 fps and 490 ft lbs while the 158 grain .357 Magnum Hornady XTP does better at 1,250 fps and 548 ft lbs. This first batch was called the 10mm Bren. Guns chambered for the .357 SIG typically have room for up to twice the number of rounds in a single reload. Pythons having issues with the cylinder clockwork, Disclaimer Policy And FTC Affiliate Disclosure |. Comparing ballistic performance, versatility, firearms and ammo availability and pricing, the .357 Magnum reigns supreme over the .357 SIG and many other handgun calibers on both the civilian and law enforcement market today. In response, Remington developed a hot .38 Special load for use in these large revolvers and branded it the High-Speed .38 Special. claiming that the .357 Sig can be even more powerful than the .357 Magnum (I have great respect for the guy and his works — very few people can do revolver customization the way he does — but his claim is a hard pill to swallow). when fired from .357 SIG brass, resulting in less penetration. If you don’t like revolvers but you want to shoot full-power 357 Magnum rounds, you can get a Coonan pistol. Their efforts led to the creation of the Bren Ten handgun. I’ve personally read. The .357 SIG was originally designed to have enough power to propel a 125-grain .355-inch diameter jacketed hollow point bullet out of a 4-inch barrel at a velocity of 1,450 feet per second. Pros and cons of the .357 Magnum and .357 SIG: Pros: Exceed FBI test standards for penetration. I admit I am a novice. .357 Magnum vs .357 SIG Price Comparison. Using the Canik TP9 Elite Combat, we tested the Vortex Viper, US Optics DRS 2.0 Enhanced, and the Riton Optics X3 Tactix PRD. In came former U.S. marine and handguns expert Lt. Col. John Dean “Jeff” Cooper. Stay in the know. The round was developed with one goal in mind: Push a 125-grain 9mm projectile to the same velocity - or so close that it makes no difference - as a 125-grain .357 Magnum projectile, when either was fired from a 4-inch barrel. Because of this, the .357 Magnum revolver platform lost its dominant position in the law enforcement scene. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, or jacketing type. those with bullets measuring anywhere from .355 inch to .357 inch in diameter. Handguns for the .357 SIG are mainly for law enforcement and concealed carry in urban environments but can be called upon in a pinch if you’re out hunting and your main rifle fails and you really need something to defend yourself with against things like black bear (it has to be said though: I would only recommend the .357 SIG for that purpose if you don’t have a more powerful handgun for backup). Actual shooting reports that this is the case and the round is performing as designed. My first experience with the .357 SIG was very positive. Out of a 6-inch barrel, the bullet flies at a velocity of 1,600 feet per second, producing a muzzle energy of around 909 foot-pounds of force. 357 Sig is a small, bottlenecked, rimless case using 9mm bullets, a couple thousandths smaller. While the fastest single load—a red-hot 125-grain JHP—was a .357 Mag., the average velocity of all .357 Mag… He would eventually work closely with Col. Dan B. Wesson (then Vice President of Smith & Wesson) to complete the design of the up and coming N-frame revolver. He would also commission. The only reason he had to ask was, for the longest time, he has been thinking of getting a revolver in .357 Magnum. The 10mm would then fade to near obsolescence. Able to defeat the most common barriers. It was a game changer, but as far as enthusiasts were concerned, it was just another wildcat cartridge. It was created specifically for the SIG P229 with the necked-down brass having more than enough strength to handle the pressure levels generated by duplicating the ballistics of Federal’s 125-grain .357 Magnum load. And the chart doesn’t show it, but there are far more .357 Magnum revolvers than there are handguns chambered for the .357 SIG. Due to the similarities, .357 SIG guns can convert to .40 S&W with a barrel swap. This platform works so well that the French Spec Ops of the 1970s outfitted some of their Manurhin service revolvers with a tripod and scope for use, Yes, you read that right. When comparing two similar-weight guns shooting cartridges with similar ballistics, if one is a semi-auto and the other is a revolver, the semi-auto will have noticeably less recoil, giving it a speed advantage as far as target acquisition and follow-up shots. Pricing will be affected by how and where you purchase ammunition, but you will generally find that .357 Magnum and .357 SIG cartridges are priced very similarly. This is because the .357 SIG will push a 9mm Parabellum bullet much faster and with more energy, changing its terminal performance for the worse. The 9mm cartridge wasn’t anywhere near as common or as popular as it is now. Bullets for the .357 SIG are of the same diameter as those for the plentiful 9mm Parabellum. Revolvers chambered for the .357 Magnum come in all shapes and sizes. Capital Cartridge offers once-fired brass to make very reloader's day. That’s because there are really only two companies making guns chambered for the .357 SIG: Glock and SIG Sauer, with the former being the cheaper option all the time. To make a fair comparison, we’ll look at the results for the Federal 124gr HST in 9mm vs. the Federal 125gr HST in .357 Sig, and the Hornady 135gr Critical Duty +P in 9mm vs. the 135gr Critical Duty in .357 Sig. The .357 SIG is simply a .40 caliber Smith and Wesson necked down to 9mm. Keith developed a super hot .38 Special load which was still safe for the aforementioned revolvers with 15 grains of Alliant 2400 providing the required energy to push a 154-grain hard-cast lead hollow point to velocities reaching anywhere from 1,200 to 1,300 feet per second. Keith’s creation had to get the nod from Smith & Wesson and Remington for it to go mainstream. We all thought it would never be brought back to life! I just learned about the difference between these two cartridges. GND is community supported. Ultimately this would result in Smith and Wesson developing the .40 S&W in 1989, the “short and weak” offspring of the 10mm that would ironically cast a shadow over its more powerful parent cartridge. You have two different .357 Handgun rounds, the .357 Sig and the .357 Magnum. 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