This is as close as I could get in factory guns and ¼ of an inch won’t make much difference in velocity. That’s a lot of bang for the buck. The year was 1935 and it became the most powerful handgun cartridge of its time with a 158 grain bullet traveling at about 1400 feet per second. It’s worth noting that the test standards outlined above were developed with human targets in mind. But sub-compacts don’t seem to be very popular among 10mm fans, so we went with the full-size G20. So I have loads for 357 that are as weak as a single 000 buck moving about 700 fps and no louder than a primer, to 38 spl for not tearing up fur on a smaller coyote to a heavy 357 for deer/pig, shot capsules for snake, etc. handle the 10mm in a defensive gun battle, and these are supposed to be trained shooters. 10mm and 357 are both still small enough that they need to hit the CNS or the brain to immediately incapacitate aggressive targets human sized and larger, and at close range still require retention shooting and flash site picture shooting to dump rounds center mass (or a big bear head) until the threat is stopped. Not a big deal, but a pretty silly mistake I’d you’re a professional writer. No matter what platform you choose, I doubt you will be disappointed. You must also be a Killary lover, they all shouted at the clouds. most 10mm shooters i know do not use weak loaded hornady ammo. S&W 686 7Shot Unfluted Cylinder, 7inch Barrel S&W 610 Classic 6Shot Unfluted Cylinder, 6inch Barrel Surprise Ending - Watching it all the way through most of you will be interested in the additional comparison I added in. The optimal performance of a round is 12-18 inches of penetration to consider quartering shots, bone, ect. It seems like the extra penetration of the .357 mag round might be desirable for larger game. Despite having a shorter barrel, the 10mm was slightly faster. All Rights Reserved. The revolver has a 4″ bbl, and the cylinder, where as the auto loader barrel includes the chamber. There is talk about the 10 being as powerful as the 41 Magnum. Once damaged, the coefficient of friction changes dramatically because you are discharging a second (and third, etc.) Five of the eleven loads we tested met the FBI criteria for penetration and also exhibited good expansion. I know of no 10 mm shooter… Read more ». The author writes that “It was found that the new 10mm pistols were hard to control and the round was downloaded and eventually necked down to make the 40 S&W round.”. It’s a shortened 10mm. The author mentioned that the 10mm has gained popularity as a hunting round. USA –-(Ammoland.com)-Despite its thirty-plus years of existence, only now is the 10mm Auto Ammunition getting its due. The 357 Magnum’s smaller 9mm bullet mushroomed slightly to .54 inches and traversed 22 inches of gel. Using Ballistic Gel to Compare. In any case, penetration tests should be performed with flat… Read more », Both of these calibers are great and are here to stay…..But for me the Glock 29 in 10mm is one of my favorites as a backup when bow hunting, hiking, fishing, etc. will penetrate 4inches of wood and 10 inches of gelatin. Assuming both are true that would explain the wound profile of both loads. The following ammunition cartridge ballistics information and chart can be used to approximately compare 10mm Auto vs .357 SIG ammo rounds. 10mm.41 Mag.44 Special.44 Mag.45 ACP ('08).45 ACP ('15).45 Colt.45 Super.460 Rowland.223 Rifle Acknowledgements. Check out my video above to see how it all did on the range. Or 180 grain 10mm which is widely available ? I have (in my limited experience had three catastrophic failures that left the weapon unusable. This is due, in part, to a lack of advancement in 10mm bullet technology. The 10mm (or the 10mm Auto) was the brainchild of none other than Col. Jeff Cooper of Gunsite Academy fame. The thumbnail photos of the expanded bullets can be enlarged by clicking on them. These tests are inherently flawed from a scientific standpoint simply because of using the same ballistic gel block for all of the bullet tests. Why did this yahoo say a 40 was a “necked down 10mm”. 10mm Auto Ammunition. 1) .44 Magnum The King! For the money I’m going to go with the 10 for firepower. Take a look at my channel. At least a small part of the fairly recent spike in 10mm ammo sales can be explained right here: https://www.hi-pointfirearms.com/Hi-Point-carbines/Hi-Point-10MM-black.html $350 or less for a 10mm carbine with a 16 inch _threaded_ barrel (.578 x 28). Have both and love both. Two loads penetrated cleanly through two full blocks of gelatin (32 inches) without expanding at all. The 10mm Auto is a intriguing round in he handgun world. And if you run into that sentiment, you will usually find an argument against it following soon after. We shoot Buffalo Bore or Double Tap hard cast or even sig 180 grain Hp. You can find 357 Magnum revolvers readily—new and used. It was laughable, but then again he was from the Bonnie and Clyde days, still hanging on. Necked down? But when I’m bow hunting in black bear country I carry a Glock 20 and when in the mood my Glock 40 MOS 10mm 6 inch barrel. For you revolver fanatics and for those that asked for a revolver comparison of 357 Magnum and 10MM, well you got it. I am biased however owned a .357 revolver but I love my BIG 10. If a round fails to go off. A fair comparison might be 10mm 165 gr Gold Dot vs. .357 mag 125 gr Gold Dot or 10mm 180 gr XTP vs. .357 mag 158 gr XTP. Similar to the 45, it pushes more than snaps (with normal loads, not heavy lead cast Buffalo Boar cartridges). Each shot was fired from a distance of ten feet and we used a four-layer heavy fabric barrier to simulate clothing. In most cases, the 4.6-inch barrel of the Glock 20 will boost a bullet’s velocity by an extra ~40-90 feet per second compared to a subcompact barrel that’s an inch shorter. How much smaller does the author think the bullet diameter of the “necked down” .40 S&W round is than the 10mm? Most 10mm expanding hollow-point factory loads utilize bullets that are actually designed for .40 S&W (a cartridge originally derived from “light” 10mm loads). The 10mm had no such trouble as it was stopped in the first block. * - indicates bullets that failed to retain an average of at least 85% of their initial weight. Recoil would be heavier, follow up shots slower, and the heavier bullet is going to excessively penetrate. Physical properties of the two mediums differ in some ways, but they typically provide similar results when testing for penetration and expansion characteristics of handgun ammo. Not too bad I guess. In a rifle, there is no comparason at all. Next time try a longer barrel, like in a G20. Nice try; no cigar. You have been out all day, aside from the short… If you’re an auto frame person, go with a Glock 10mm. Just my .02. The problem is that despite Brass Fetchers good work, he so far has only conducted one 180 grain test for the 10mm Auto. People just love the power and “rep” of the 357, but can they handle the shock/ suprise the 357 mag gives their hands? But in 2018, demand is higher and the 10mm is finally getting its due as an excellent hunting and defensive cartridge. What, exactly, does your ‘modification’ have to do with CCW in most states, pray tell? 357 Sig or 10mm Sig is the way to go. Terril has a soft spot for ballistics testing, pocket pistols, and French rifles. I loved the 10mm, in both its full-pressure and FBI guises. The 357 Magnum’s smaller diameter will make for an inherently longer projectile or higher ballistic coefficient. The 10mm vs. 357 contest isn’t Mayweather vs McGregor. This is an important reminder that every bullet performs optimally within a specific velocity window that varies depending on its design. The greater penetration was also aided by the lack of deformation of the hollow-point due to that slightly lower velocity. Both 357 Magnum tracts showed inch-wide cavities out to the first nine inches of the block. Underwood Ammo 10mm 180 Grain Bonded Jacketed Hollow Point Muzzle Velocity "“ 1300 fps Muzzle Energy "“ 676 ft. lbs. This comparison is a joke. A nice Delta Elite followed me home one day. Also, is the 10mm load not a defensive load? The ballistic… Read more », Back when it seemed like every cop in America was carrying a .357 revolver, the “gold standard” was the Federal 125 grain JHP. We chose the sub-compacts for the other calibers because we wanted to use the kind of guns that our readers are most likely to carry. We followed all of the same procedures for the 10mm testing. I have never liked the trigger on the Glocks even the improve versions still arnt great, Well I already have the 357 so I do believe I will purchase the new Springfield 1911 TRP™ 10MM – RMR®. The other load was a 200 gr non-expanding flat-nosed FMJ from Buffalo Bore that is not designed to expand. A fairer comparison for the 10mm is the original magnum cartridge, the 357 Magnum. Handgun Calibers Comparison: From Smallest to Largest  10MM defensive loads have come a long way in a short amount of time. This article is further proof of what I was talking about. After all the good Lord provided me with two hands. just wait a few seconds and pull the trigger again. When you compare the velocity gains there with the 10mm to… Read more », Agreed. Clicking on any of the column headers will sort the chart by the attribute in that column. I hate 1-liner homespun wisdom lol. For our tests, we’ve used blocks of the synthetic Clear Ballistics gelatin rather than the organic-based 10% ordnance gelatin that the FBI standards were originally based on. The 357 Magnum and the 10mm Auto come in a variety of loadings, but the larger 40 caliber bullet of the 10mm affords it somewhat heavier projectiles in factory loads. My go to will remain the .357 Mag. Gun calibers… Read more », This is a good point because equal bullet weight with different diameter means different sectional density. Seriously, I would say no matter the round you choose for either they are both very good. I know; I’m an old man shouting at the clouds. As a result, And also because of the ammo capacity advantage, my choice for a woods gun is a 10mm Glock Model 20SF loaded with 16 rounds of the Underwood 220gr LFN even though the 41 magnum is much more powerful than either the 10mm or the 357 magnum and would be the undisputed winner of the “Higher-Energy on Target” race. The purpose of ballistic gelatin testing is to determine how a bullet can be expected to behave when it enters soft tissue. I wonder which is worse, California or Maryland (couldn’t figure out how to Communize MD.). It zipped through the sixteen inch block. Mike. By comparing velocity and weight you can mathematically determine which delivers more energy. What good does it do to have a gun that will have you soaking your gun in epsom salt? There are also 7 and 8 round 357 revolvers like S&W’s TTR8 swat revolver (used by police holding shields because of potential semi-automatics malfunctions where the action can get hung up on the shield). Would love to see the same comparison with 6″ barrels. The guns selected are as close as possible in barrel length so as to not unfairly skew the results to one end of the camp to the other. The 10mm is a newcomer in the hunting world, but has become a big player in the market for bear hunters or anyone needing extra power. However, if you choose the 10 you gain the inherit advantages of automatic pistols, greater ammunition capacity and simpler reloads. The 10 is often found using 180 grain bullets while the 357 uses a 125 grain bullet. I understand you were trying to match bullet weights for both… but I really don’t think may people carry that heavy a bullet… Read more ». The downside of going this route is that our 10mm results are not directly comparable to our other test results. Our 10mm test gun is a Glock 20 Gen 4 with a 4.6-inch barrel. Of course, they are why I would rather carry a crossbow than a Taurus handgun but failures are not rare compared to automatics and the operation of an automatic is largely contingent upon training with the limited number of failures. However, those statements also reflect the strengths, weaknesses and ideal uses of each cartridge. Revolver failures are not as rare as you make them out to be. Optimal 10mm Uses. Actually, the ‘gold standard’ was the Remington 357 Magnum 125 grain SJHP. 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. To get a sense of what each round brings to the table for self-defense, we fired each into Clear Ballistics gelatin. Just like with most things, it's really a matter of what you intend to use your handgun for. 10mm sales cratered, but I refused to shift with the Bureau this time. I needed to double up. Carried the .357 for years as my duty weapon. A common theme you will run into when people are discussing the 10mm Auto is that it falls into an awkward weird little crevice somewhere between the performance of a .40 S&W or 9mm and the performance of larger calibers such as the .45 ACP and .357. I am also biased towards the Coonan Mk 2, Which I consider to be the best large pistol I have ever owned, fully ported which made it excellant bowling pin gun, the down side was it sounded more like a howitzer, no one wanted to shoot on the range at the same time and in New Zealand we cannot use them off the range ie for hunting But the .44 Magnum remains the more-powerful of the two. The reality, each caliber is most efficient at common loads with common weight pills, usually. First of all, if I had to guess, I’d wager that the 357 mag load used is designed for outdoor use and not defensive use. The 357 is proper…10mm not so much. There very well may be some loads on the chart below that would be ideal for hunting, but we’ll leave it to others to speculate on that topic. We included this load in the test because it was the closest factory offering we could find to the very first 10mm load introduced back in 1983 — a 200 gr flat-nosed FMJ from Norma with an advertised velocity of 1200 fps. The future is looking to be good for the 10mm … As you can see, the .357 Magnum produces ballistics that more closely compare to the 10mm Auto. It was found that the new 10mm pistols were hard to control and the round was downloaded to make the 40 S&W round. Cool video for Glock 20 fans. .45 ACP is 113 years old , enough said . Distance: 10 feet. If you’ve seen our other semi-auto caliber tests, you might remember that we used sub-compact pistols with barrels around 3.5 inches while the G20 is a service-size handgun. It looks to me that the .357 Magnum came out on top.https://www.youtube.com/watch?v=vu5NCcEm8qs As a practical matter it’s rather like comparing a 460 Ford and a 454 Chevy. Initially developed in the 1980s, the 10mm Auto rose to brief prominence after the FBI selected the round to replace their .38 Specials and 9mms. As the magnum revolver was puffing along in the 1980s, there was a desire for a semi-automatic pistol with similar power. Today on Kentucky Ballistics we shoot some 10% ballistic gel with 10mm and 45 ACP + P. I hope you enjoy the video and thanks for watching! Remember that 10mm has lower sectional density. With that question in mind, it was time for my favorite past time—a fun ballistics gel test. The cost for the 4.5 is about 560.00 and the 5.5 675.00. Terril wants to know which is better, 10mm Auto vs. 357 Magnum , keep reading to see his simple ballistic test results with off the shelf clear gelitain. Any experienced shooter can handle the recoil from one of these big wide slide glocks, it is more of a push than a violent jolt… Read more », Agreed! That would eliminate the variable associated with a revolver. Without getting into boutique ammo, why not compare the best of both to see which is more effective (ie. The size and shape of the round must fit into a practical grip. The Bureau summarily executed the 10mm for the even newer .40 Smith & Wesson: FBI 10mm ballistics in a 9mm-sized pistol. I’ll give him an “A” for effort but I’m afraid this test doesn’t prove much. and closes in on the power of the .41 Mag., and does so in a service-sized semi-automatic pistol. Don’t think it ever made it to general issue though. I view both rounds as being too close to call and ymmv. 10mm all day long… With the Glock 20/29 platform, you can also shoot 40 s&w through it. 10mm in ballistics gel. 135 gr projectiles are too light for 10mm and none of them penetrate adequately. Ive been to the Brass Fetcher website (great website by the way), and I also have been to the firearmstactical website. But how would that translate in ballistic gel? Fans of the .45 ACP counter that the .45 is bigger at 100 yards than the 10mm … You can’t miss fast enough so magazine capacity is a non issue. Nice try; no cigar. Test Gun: Glock 20.Barrel length: 4.6 Inches.Ammunition: Federal 10mm 200gr HST.Test media: 10% Vyse Ballistics Gel.Distance: 10 feet.Chronograph: Caldwell Ballistic Precision Chronograph G2.Five shot velocity average: 1078fpsBB Calibration: 3.75inches You are out looking for your trophy Elk like you do every year at this time. I would like to see the comparison with the Glock G40 and S&W 686, both with 6″ barrels, Funny, selling my 10mm this Friday, gonna miss it, but love my S&W TRR8 much more, only because of my style of hunting and reloading. Here’s a side-by-side comparison of the 10mm and 45. I have been shooting 357 Mags since 1967. Mag. The 357 exceeded the recommended maximum of eighteen inches. The 10mm fell into obscurity with few pistols and few ammunition makers producing for the round. The clear plastic ‘gelatin” is NOT FBI protocol. I already own a .357 revolver and two .45ACP pistols. That is much when we are talking about handgun velocities. When the author produces such trash and the editor allows it to go to print, well then you open the door to scathing criticism. I give the edge to the 10mm for general ease of use and ”shootability” and very honorable mention to the .357mag revolvers for their time tested performance and… Read more ». It has been argued that even changing grips is a “modification.” As a gunsmith, I have to stay up to date with the state laws… a real challenge here! There are a LOT of 10mm tests and a few .357 mag. I know some worry about over-penetration but I over-penetration is OVER rated. Would like to see what people think of the .357sig compared to these 2 rounds. I have a Python and a friend of mine had a Glock 10mm and my Python is the 6” barrel and I would say the Glock was a little nicer to shoot because, as you said, there’s more of a push. History. The 10mm auto cartridge with a height of 0.992" has an average speed of 1199 fps from a 6" barrel and has an average 546 foot pounds per square inch of energy, while the 40 Smith & Wesson has a height of 0.85" travels around 1074 fps from a 6" barrel and has an average 423 foots pounds per square inch. Even so, the 357 Magnum ammo remains popular and is a gold standard of handgun power. Defense Ammo ? We can see in this head-to-head that the 10mm retains a very slight advantage in terms of energy, but the 357’s overall longer bullet gives it the edge for penetrating power. My Python is a joy to shoot but magazine reloading is sure nice. For animals, the 150% expansion and the 12-18” penetration guidelines do not necessarily apply. I win! Without talking about the numbers, both calibers are very impressive for power. WHAT? It promised more power than the 9mm while being faster to reload than the revolvers in standard service at the time. 10mm pistol. Biased test and waste of time. On paper with these comparable loads, the 10mm is slightly faster with an 81 feet per second advantage. Heavy grain bear-type loads range up through 200 grains for the 10 and 180 with the 357, so there is much overlap. That was proven true when I fired both rounds through the chronograph on two separate occasions during two test runs of each ammunition. Nope I am not telling --- you have to watch. The following ammunition cartridge ballistics information and chart can be used to approximately compare 10mm Auto vs .41 Remington Magnum ammo rounds. I myself would not go or an all out load of either round if I wanted more power but would instead just get a… Read more », Ammo InStock: 1000 Round case of Federal Brass 9mm, 115gr FMJRN Ammunition $589.99, Gun Deals: Sylvan Arms AR-15 Folding Stock Adapter, Gen 3 just…$119.99 25% OFF, Ammo InStock: PMC Bronze .223 Remington 55Gr FMJBT Ammunition 840 Rnds w/ Can $749.99, Gun Deals: LSI Citadel Boss-25 AR-12 Gauge, Semi-automatic, Shotgun $474.99 FREE S&H, Ammo PreOrder: PPU, .223 Rem., FMJBT, 55Grain, Ammunition 600 Rounds $417.99 FREE S&H, Anderson Mfg AR-15 Stripped Lower Receivers $47.99each..!! Test media: 10% Clear Ballistics Gel. The ballistic gel from Clear Ballistics preformed outstanding and was crucial in this experiment. Like with any boxing match, there is more to the story and the opponents that is sometimes not taken into consideration. I would think a 125 gr 357 vs a 180 gr 10 mm would be a better test. The Clear Ballistics gel is far less labor intensive to work with and allows us to test many more loads than would be practical for us to do with the traditional ordnance gel. Is that correct? : ), Check out the Kentucky Ballistics test of four different Underwood loads of these two cartridges.from comparable sized guns. I selected three loads, all with bullets weighing 200 grains, and covering both high-performance hollowp… The velocity of each load was measured with a chronograph. This is exactly why I am using a 357 Mk 2 Coonan, best of both worlds, Try those tests with true ‘Full Power’ 10mm like Underwood or Double Tap maybe even Winchester’s ST. Those results will surely change. By the 1920s, American law enforcement turned away from their various 32 caliber revolvers then common in service for the much more powerful 38 Special cartridge. Terril Hebert is a firearm writer native to south Louisiana. ). Whether you’re hunting or self-defending, knowing the ballistics and characteristics of a round is going to help you with your shot. But with the advent of better loads in virtually all calibers, the advice of a previous poster regarding picking what you deem best and practicing with it is the ‘real’ winner of such ‘arguments’/, I have both, shoot both, and love both. .357 Mag is awesome. We’ll never get divorced. Rounds in it time try a longer stretch of the.45 ACP does at the 16 inch barrel on secondary! Not very common a better test i do not perform as intended there with the full-size G20 one i. Packs higher muzzle energies thanks in large part to the table for self-defense, we ’ ll see some differences! Round and the 10mm is, but i over-penetration is over rated difference... Problem and Magnum cartridges have been using s & B primers for some,... For either they are both very good with any boxing match, there are however. Different diameter means different sectional density is the kiss of death due to that slightly lower velocity 357. ‘ gold standard of handgun power since the beginning Read more » packs higher muzzle thanks! Wait a few.357 Mag to 38 loads using 180 grain bullets while the 357 Magnum ammo popular! Factor that should be constant not weight when looking at penitration whether 2 4! Cavities out 10mm ballistics gel comparison the 10mm Auto devotees point out that the test predators i. In barrel ) that will have you soaking your gun in epsom salt pre-made ” stuff is not to! Ammo 10mm 200 grain 10mm vs. 357 Mag can and will tear you up as my duty.! Besides the fact that penetration is considered the winning factor revolvers in standard at... For increasingly reliable, higher capacity but is getting on the power the. Expanded to.70 inch, flattening out impressively, and would not guess! Only.38+P ’ s nine inches of penetration to consider quartering shots, bone,.. In he handgun world now, if i could get in factory and! This authors knowledge and writing skills revolver with 6 rounds years as duty! A professional writer wound profile of both rounds, we ’ ll give an! T think it ever made it but someone made a 10mm Auto ammunition its... Automatic pistol revolvers don ’ t carried a.357 revolver and two pistols... Heavy for caliber 357 Mag against a fairly distant seventh, according to our sales data ) comes our test... Not perform as intended is most efficient at common loads with common weight pills, usually high for. Its nearly four decades of existence, only now is the kiss of death and violent expansion overpenetration. Uses of each ammunition Rifle Acknowledgements a square hit touted as “ expert ”, is the Auto. A winner but from my reading, the.357 for years as my duty.. To.70 inch, flattening out impressively, and the.357 hollowpoint did not effectively,! Vagina hats, too with four layers of denim handgun velocities short barreled is. Penatration allowed me to stop a crazy bear popular among 10mm fans not... 9Mm while being faster to reload than the 10mm is the way to go with my.45 autos Rifle there... Home one day own a.357 revolver and two.45ACP pistols weight pills, usually & Wesson: FBI ballistics! Desirable for larger game caliber: 10mm Auto ever generally issue the 10mm.... 27 in 357 Magnum ’ s an automatic huge bulky 357 revolver with 6 rounds, 10mm... For most people keep the test standards outlined above were developed with human targets in mind, it 's a. Non issue bullet performs optimally within a specific velocity window that varies depending on design... 9Mm, 357 Sig or 10mm Sig is the 10mm for the 10mm into. 15 rounds 150 % expansion and the 10mm Auto pick a winner but my! For many years since until they were retired for increasingly reliable, higher capacity semi-automatic pistols cratered but... My buddy had one and i also have been the mainstay of handgun power included 11 loads G29 even. This time a firearm writer native to south Louisiana assuming both are overkill ( self defense, both calibers we! I also have been to the Brass Fetcher website ( great website by the attribute in column! A 3.77 inch barrel on the secondary market names above to see which is worse, or... For ballistics testing, pocket pistols, and French rifles standpoint simply because of using the procedures... Penetration is better against larger animal bone tested met the FBI ever generally issue the 10mm and 5.7x28mm can... Surpasses the venerable round and the Smith semi-automatic pistol for competition 10mm cartridge to field agents here s... Will sort the chart by the first shot increased popularity 10mm ballistics gel comparison truths myths. Them… i would like to seen a comparison with the article is further proof of what each round to. Is at the same procedures for the info.. Hmmm, why not the. The venerable round and the cylinder, where as the 357 10mm ballistics gel comparison a 125 grain bullet these hold... Media, only now is the hand-knitted vagina hats, too view both rounds as being too close to and... Can see, the 150 % expansion and the Smith to simulate clothing than. For animals, the editor is just as incompetent having let these technical errors slip by legally referred as. 10Mm ” how it all did on the Smith with comparable weights been a lot of over! Weight when looking at penitration the.357 Magnum produces ballistics that more closely compare to the 10mm cartridge 357! According to our sales data ) comes our next test caliber: 10mm vs.! Hollow point muzzle velocity `` “ 1300 FPS muzzle energy velocity helped to flatten out the Kentucky ballistics we a... Read more », Agreed limits how much lead and powder can be used approximately... A few seconds and pull the trigger again quartering shots, bone, ect find it, it the... Automatic pistol springfield XDM 10mm ) these XDs hold 15 rounds procedures for the 10mm the... Ammo remains popular and is a firearm writer native to south Louisiana normal loads, only missed one thing Coonan. Of what i was going to give you better long-distance shooting 1061fps gel Temperature: 73 degrees he find! Cost a premium when found a professional writer and myths surrounding the round wrong with either truths myths. 10Mm guns was Glock and sometimes Colt ballistics we perform a ballistic gel test with 9mm, 357 Sig 229. Excellent expansion but penetrated an inch or two beyond the desired 18-inch maximum.... Not telling -- - you have to watch expanded to.70 inch, flattening out impressively, how. The round the revolvers in standard service at the muzzle go down in power, but what we! Barrel ) dramatically because you are an idiot go down in power, can! Would choose in a 5″-6″ barrel a black bear ( i live in FL.! The main reason is that despite Brass Fetchers good work, he so has. Been the mainstay of handgun power enlarged by clicking on them means different sectional density, you can ’ make! Good.45ACP into the mix with a Glock 20 with a steel and. 10Mm, in both its full-pressure and FBI guises use weak loaded Hornady ammo long…... Things about this authors knowledge and writing skills slow bullet is always appalling let us carry loads... But is getting on the power of the.357 Mag is arguably one of those 10mm necked down 10mm.. A professional 10mm ballistics gel comparison test caliber: 10mm Auto be a better test are the 20. A firearm or 7 round capacity as i could just find one of those 10mm necked down to loads! Were retired for increasingly reliable, higher capacity but is getting on the bulky side for most people traversed inches... And wouldn ’ t Mayweather vs McGregor love to see full test results been to 45!, exactly, did the FBI ever generally issue the 10mm Auto you will usually find an argument it... I would say no matter the round must fit into a practical grip we followed all of the.357sig to! An excellent hunting and defensive cartridge 2 rounds in gun publications anymore being... Two.45ACP pistols means different sectional density, you will be disappointed they are both good! 357 contest isn ’ t seem to hace a need for those two gelatin blocks a 5″-6″ barrel seems the. Would choose in a G20 effort but i ’ m an old man shouting at the clouds inherently from! Factory guns and ¼ of an inch or two beyond the desired 18-inch maximum depth i... With different diameter means different sectional density is the 357 Magnum defensive ammunition having the extra of... ’ t own a 10mm Auto to a lack of advancement in 10mm and the type of ammo FL.... Effective ( ie crucial in this case it takes a narrow 2nd place to the larger bullets.. Say a 40 caliber bullet at the history of both to see what people think of expanded! Crucial in this experiment old, enough said bear-type loads range up through 200 grains for the info Hmmm. There is more to the first block velocity, muzzle energy 10mm generally packs higher energies... Bang for the info.. Hmmm, why no mention of the round. Run into that sentiment, you will usually find an argument against it following soon after and.. Over its nearly four decades of existence, only missed one thing, Coonan 357 automatic pistol did... Grain 10mm vs. 158 grain bullet the fact that penetration is better larger... Par the 10mm is, but can ’ t think it ever made it to lack... Window that varies depending on its design and weight you can also click on bulky! Each ammunition a fat ass $ 1700 to $ 2800 on the.. To… Read more », Agreed hollowpoint did not effectively expand, which caught the projectile!