C’mon caliber weenies, man up! It’s time to embrace some serious stopping power: 762 ft. lbs. of muzzle energy, to be specific. From what I’ve seen down at the range, there’s a simple reason you have “issues” with 10mm recoil: shooting technique. Bend your knees, stick you ass out, get a proper grip, squeeze gently, don’t flinch (yes, they make 10mm snap caps) and BAM! Bears and bad guys alike aren’t going to shrug-off that ballistic bad-assery. Remember: S&W .40 is just shortened 10mm. And that you don’t need too many shots with this amount of muzzle energy to stop a lethal threat (assuming proper shot placement). So what’s stopping you? [h/t thegunwire.com]

RELATED ARTICLESMORE FROM AUTHOR

93 COMMENTS

  2. .40 S&W is not necked down, that would be like the .357 Sig, or most rifle casings. The brass is shorter than 10mm, and you could say it’s ‘loaded down,’ as in a reduced powder charge. Bullet diameter is the same.

  3. For human targets it’s overkill. .40 S&W does everything you need in a smaller frame.

    10mm is a neat cartridge, but it is niche for a reason.

    • Well, is there such a thing as overkill for a human target? NO. I do understand what you mean and that is also why I have a .40 for one of my concealed carry guns.

      • Yes there is. Handguns don’t achieve the velocities at which remote wounding occurs (like rifles). With handguns you’re going for penetration and expansion. Human bodies are only so deep, so you don’t need a huge amount of penetration (which is why the FBI minimum is 12″). Too much penetration means that bullet has zipped right through the target and is a potential liability. With expansion, there’s only so much you’re going to get out of a .40 caliber projectile. 10mm Auto and .40 S&W have pretty much identical expansion because of this.

        Now, if you’re hunting or looking for protection against wildlife, 10mm is a great choice. With heavy hardcast lead bullets 10mm is a viable round for bear defense.

        • While you are correct about general handguns not being able to create a permanent or crush cavity from the stretch (temporary) cavity due to the inadequate velocity compared to rifles, that stretch (temporary) shock wave still has value. A sharp punch to the solar plexus that stretches the nerve cells via a pressure wave will still incapacitate (why 357 rocks) and is still of great value.

  4. 10mm is too expensive. I’d rather just shell out a little less for a more common caliber anyway, like .357 magnum.

    • It really isn’t that much. If you reload, it is $.22 a piece for brass, depending on choice of bullet ($.30 to $.34 a piece), powder is nothing in pistols. If you really do think about it, you aren’t spending anymore more money than you would a 40 smithy. I use the Colt Delta Elite in 10mm, Springfield M1911A1 in .460 Rowland and a Springfield M1911A1 in .45acp for OC against peoples and wildlife. It is not over kill at all. Plus price isn’t bad, unless you’re broke. You spend about $3 to $5 per 100 rounds more, than the .40 smith.

  5. The 40 S&W is not a necked down 10mm. It is a shortened 10mm case. The bullets are both 10mm diameter. The 40 S&W provides plenty of power, and is much more controllable.

  6. Alright Mr. Farago, you asked for it.

    Court’s in session. On trial:the 10mm unsuitability for my carry gun.

    Let the court enter as evidence the following facts.
    Observe ladies and gentlemen of the Jury, that currently only three types of 10mm pistols are in production. The Tanfoglio Witness is made on a continent where guns are regulated stricter than Sarin nerve agent, and 10mm 1911s are built on a platform which was never intended for that kind of power. Glock’s model 20 remains the only reliable out of the box 10mm that one can purchase with any hope of go anywhere reliability-and its rather difficult to hide. Its compact version isn’t, but compact and full power 10mm do not good follow up shots make!

    Consider , that ammunition is harder to find than a single Israeli supermodel in Wyoming. To buy 10mm ammunition I must drive 2 hours round trip, and my apartment has no space for a good reloading component.

    For my closing statement, lets remember that choosing a defensive caliber has nothing to do with manliness. A .22LR and 10mm to the spinal cord have the same effect on the bad guy. What can 10mm do better defensively than .45 ACP , 9mm+P, or .357 magnum that us ordinary Joes should invest massive resources in ammo and firearm hardware to acquire it? Even Jeff Cooper acknowledged that the extra power of 10mm at long range was meaningless when bad guys attack from tabletop distance. Considering the kind of buckshot patterns I see at the target range, ladies and gents of the jury, should we really be trying to encourage already inexperienced shooters to shoot a more expensive & powerful round to miss with?

    The Prosecution Rests.

    • “Consider , that ammunition is harder to find than a single Israeli supermodel in Wyoming. To buy 10mm ammunition I must drive 2 hours round trip, and my apartment has no space for a good reloading component.”

      LOL.

      • Grafs and sons has good selection of 10mm
        MidwayUSA has a large selection.

        Here in Idaho, I have to drive about 65 miles to the nearest city to pick up 10mm. But thankfully I found online stores that sell it for $19 a box sometimes $23. depending on shop.

    • You, Sir are hilarious.

      Everybody wants a 10mm. I can right now go out and get one for $445 dollars. I actually can get ammo for it. I still, however, don’t reeeeeaaaally want one.

      Like you said, for defensive reasons, it is not high on my list.

  7. I don’t carry a 10mm because Dan Wesson doesn’t make a commander sized 1911 in 10mm anymore. I wish they did.

  8. I recently almost got seduced by a sweet stainless S&W 1006, but cost and availability of ammo is a big issue, so I passed. Maybe if we can increase demand for 10mm, we’ll not only see more ammo but more pistol choices (Glocks just don’t fit me very well, and I’ve seen too many reports of cracking in the EEA guns). It would be nice to have something in production as hot as my Deagle without the ridiculous size and weight. (Hey Magnum Research: How about a DE .357 compact?)

  9. Not needed for people. The .45 acp is more than sufficient.

    Beats the hell out of most guns, and the added recoil/blast/muzzle lift don’t add a thing in the defensive scenario.

    The .44 mag and its like do even better on animals. If you do some serious research and read the development of the 10mm (see Jeff Cooper), he wanted something that shot flatter out to 100 yes. than the .45.

  11. Two words…357 sig. When compared to my 40 it has more energy, flatter shooting, and more accurate, everything I need (ammo cost about the same too). But since shot placement is king, the best round is the fastest/largest you can personally shoot accurately and comfortably and that will vary with the shooter. So to each his own, but for me it’s 357sig.

  12. Wow glad to see people know what is and isn’t needed! Wonder if I went into their collection what I would find that wasn’t needed or useful. 10 mm is a great round! Have 2 and a Mec Tec conversion. Yup they require practice but so does a j frame 38 and a lot of them aint easy to shoot. Yes I carry them too. Ammo is easy,no not at wally world but I buy from 5 or 6 different places with no problems.

  13. The first handgun I ever owned was a 10mm. I regret selling it almost everyday. But you have to do what you have to do to get by…

    One of these days I WILL get a replacement.

  14. 1. Most factory 10mm ammunition is loaded closer to .40 specs than the upper end of 10mm potential. So it costs 30% more than .40 but has little meaningful advantage over its shortened cousin.
    2. The ranges where 10mm comes into its own, beyond social distances, where the flat trajectory is most evident aren’t ranges where people should be making DGUs as a rule. I’m not saying the occasional long range firefight isn’t necessary, but it’s the exception that proves the rule.
    3. Ammunition is scarce, especially from double tap and buffalo bore. Excluding hand loads, 10mm rounds are both expensive and difficult to find except at larger online retailers. The comparison to .44 magnum is appropriate here. At the relative cost and rarity of the 10mm, it doesn’t lend itself to regular practice for anyone but the devoted hand loader.
    4. There are no major pistol caliber carbines produced in this caliber, despite what might otherwise be a very high market demand. Get me an AR in 10mm that takes glock mags that’s commonly available and we’d be talking (and no I’m talking about an actual carbine and not a carbine kit.) The last try at this I can remember was the MCS platform which fell on its face sadly.
    5. The 10mm suffers from mission identity disorder. It is a highly versatile cartridge, capable of loading up or down as the situation requires. But, since most of the factory loadings don’t take advantage of the upper end of its potential, promises about its performance are made in the world of theory and are much more difficult to realize in the real world.

    I’ve shot a lot of 10mm and love it dearly. But it is a significant investment when other calibers can do its job well with the proper loadings, at half to two thirds the cost, and over a much greater variety of platform choices.

    • Gotta agree on all points.

      Never quite apprehended the need for the 10mm. Or the .45 WinMag, which outclasses the 10mm by a fair bit.

      Handgun hunters typically don’t use pistols, preferring instead to stick to revolvers and single-shots (like the Thompson Contender/Encore). So I’ve always seen the 10mm as a “solution in search of a problem.”

  15. I currently shoot .40S&W, so if SIG could figure out how to make a P220 in 10mm without increasing the fore-to-aft dimensions of the grip, sure, I’d consider it. A modern 1911 in 10mm would be also be pretty sweet. (Oh, and I’d need to see it added to the CA safe-handgun roster. Sigh.) The currently available choices in 10mm guns just aren’t that interesting.

    Since the only time I can carry concealed in CA is when I’m hunting, a full-sized semi-auto is just fine. Based on my limited experience shooting the 10mm Glock with full-power rounds, I wouldn’t want it in a smaller-framed gun.

    That said, I agree with the folks who say the .45ACP does just fine. The 10mm full-power loads I’ve seen are rated more like 600ft-lb energy, and there are .45ACP +P loads that come in around 550ft-lb.

  16. For most of us the 9mm is more than adequate. Ammo is cheap and available to make practice more practicle and as stated shot placement is king with a handgun. I can get practice ammo at wallyworld and the wide variety of guns gives choices that will fit most needs.

    It’s a free country so long as you can afford it and my choice in auto’s is 9mm.

    • +another.

      Modern JHPs make the issue pretty much moot for DGUs against two legged threats. If somebody wants to blow a bunch of $$ shooting a caliber that makes them feel more secure, hey, it’s a free(ish) country. I’ll take 9mm with bonded JHPs and not loose one moment’s sleep over it.

  17. Bring back the Bren Ten! Also the Miami Rig. And let’s not forget an unstructured sports jacket over a colored undershirt and Elvis the pet gator, too. Oh, and don’t leave out Philip Michael Thomas, because Jeff Cooper needs a sidekick.

    The 10mm is an interesting, well-intentioned, niche caliber that proved to be a commercial failure despite having some good attributes. Its main problem seems to be that, aside from Miami Vice naustalgia (yeah, I know how to spell it), the 10mm doesn’t bring anything to the party that isn’t already there. I enjoy shooting exotics like the 50AE, the S&W 500 and yes, the 10mm, but not for carry.

    • The main issue with 10mm is that it was hiped so much and pushed on the market so hard initially, that when the Bren fell apart and the FBI abandoned it, 10mm was pronounced DOA. As I remember it, the Bren was prone to all sorts of problems, bad to nonexistent customer service, and a cronic shortage of magazines. You can’t gain wide spread acceptance of a cartridge under those conditions. It’s a tribute to its usefulness that the round is still around at all.
      Now we have the glock 20 and 29, S&W 1006, Tanfoglio offerings, Kimber eclipse, S.T.I. perfect 10, and colt delta elite to name a few. If ammunition was say at $20 instead of $30 a box, then I think everyone would be all over the 10mm round.
      Look at what happened to the .45 super. It had a lot of promise, but issues with the timing and barrel requirements left it a market dud. That’s truly terrible considering that the .45 super generated very similar ballistic energy to 10mm loadings.
      I think the 10mm will be around for a while, but it’s going to take a while for that initial negative impression to leave the market and for production quantities to make the round affordable.

  18. Because the last thing I need is another caliber to place into inventory! 45, 9mm, 380, 22, 38, 357, 44, 308, 30-06, 8mm, 223, 7.62×39, 12ga, 20ga, 410. And at a min. I have to have at least 3,000 rounds of each caliber…So, I’m running out of space. I now buy guns solely based on them being in the above calibers.

      • Suppose that there are no Universal or God given standards of right and wrong ethical behavior, and all morals are thus a subjective individual opinion. How then does a society (or its rulers) write laws, justify them, and prosecute people who have different values and go their own way breaking their laws?

  21. 10mm: A great way to turn a 1911 into a hunting handgun. You can launch a 180gr xtp at 1350 FPS. This hits like a sledgehammer compared to a 9mm/.40/.45 ACP.

  23. PPL in MT and WY love the 10mm Glock, cheapest bear medicine handgun one can find (new) and it will go bang every time.

    • Agree. The 10 mm’s sole purpose is to shoot hard-cast lead and Noslers at bears. Buy a KKM 40 cal. barrel for your 10 mm Glock and you have a reasonable house gun and a last-ditch bear gun.

      • …and a pretty sweet start for building an open competition gun. This is the exact setup for my GSSF open gun: G20 with a KKM barrel. 40 cal loads with a heavier G20 slide mass makes a nicer, softer recoil. But I digress.

  24. All 3 of my 10’s work well and serve me well.Glock 20 for Full House loads,Witness Elite Match for around the Norma Spec loads,a little off but a 180gr at 1300 and 200 gr at 1200 to 1250 with a 18lb spring and a Witness Compact for FBI Lite to Med load.Reloaders dream caliber.It’s made a comeback,but thanks to Glock the gun was built around cartridge..40 cal is NOT real 10mm specs and google the following”The Venerabal Glock 20 by Brasstard”.Also the go to for real 10mm ammo is (UnderWood Ammo).Priced great and you will get whats advertised.All testing done with a stock Glock 20.Forget Double Tap.

  25. Glock 20 10mm with buffalo bore ammo 180 g 1375 ft per sec. 730 foot lbs of energy and with a wolf change out barrel I can shoot bulk .40 cal ammo for practice while using the same magazines.
    It’s issued I believe to Norwegian rangers to defend against polar bears.
    It’s not that much of an extra kick on recoil compared to a 1911, considering the third more velocity and energy one gets from the round, at least to me.
    If you really want a one shot stop, this round comes close.
    The Colt delta elite 1911 is beefed up to handle the 10 mm round, I want to buy that next.

    • Buffalo Bore is good but way to pricy.Ck UnderWoodAmmo.You will get same results and more ammo for around 30 bucks jhp 50 count.fmj is 25.00.

  26. “Wouldn’t you really rather shoot 10mm?”

    Shoot it? Hell yeah.

    Pay for it? Well that’s another matter….

  27. In a reactive gunfight, I’d rather have more BBs in my pea shooter.

    In daily carry, I’d rather have something slimmer (even if it’s a Glock and only 0.1″ slimmer).

    For defense against (brown) bears, I’d really rather have something much more massive, like an FAL in .308. If you had to put me one on one with a bear, a pistol would be the last thing I’d grab.

    I’ve talked to ER docs that handle GSWs. They can’t tell the difference between 9mm, .40 S&W, and .45 ACP when the victim is on their table. The damage all looks the same.

    If I *really* wanted to shoot some massive Joules out of a plastic fantastic pistol, I’d drop in some .45 Super and a heavier recoil spring, then go back to .45 ACP for the rest (translation: the .45 ACP would go back in the safe and the 9mm would ride in the EDC #1 spot).

  29. 1. It’s expensive
    2. It’s hard to find.
    3. Higher chance of over penetration.

    Having said that, I would still love to have a G20 for a woods gun.

  30. I wish you had more options. Unless you get a custom gun your options are one of those EAA guns, 1911 variant , s&w 1006 or glock 20. If SIG or H&K came out with a gun in 10mm I would be all over it. Till then I will pass.

  31. I think I’ll buy two Ruger LCR DAO snub-nosed .357 magnum revolvers and load them with Corbon or Hornady .38 Special +P HP @125 grain bullets. I will carry them concealed on my right and left sides. When danger strikes I’ll draw one in either hand and become a whirling tornado of hot lead.

  32. The .460 Rowland is even badder than the 10mm, and can be used in many .45 ACP models with conversion kits. A 230-grain JHP at 1300 fps is pretty bad news, and the ammo isn’t much harder to find than Buffalo Bore 10mm.

    • I love my Rowland conversion totally agree, although if I ever find a 10mm for good deal it will join my range queens

  33. No, Because you can’t hit anything with it?

    I have a friend who qualified as an AF Security Policeman. He can one hand tight groups with a 1911 at 25 yards. He had a 10mm and could hit the paper.

    • I’ve taught featherweight 20-something girls to fire a G29 and G20 competently. What’s his excuse?

      And I’m talking hot hand loads, not the watered down stuff.

  35. I don’t see much point in the 10mm. To me, it an unnecessary step above the highly respected .40 / . 357 / .45 class, but well below the hunting calibers of .44 mag / heavy .45 Colt / .454 Casull / .480 / .460 Smith / 500 Smith class. In essence it has unnecessary power and recoil for self defense, and it is under powered vs. the .44 mag and higher calibers. (I’m intentionally not mentioning the .41 Mag, which is ballistically somewhat similar to the 10mm). I can see it as a woods gun, but I’d take a .357 / .38 +P / 9mm / .40 / or .45 ACP for self defense. I might like the 10mm more if I lived in Montana, but I don’t.

    • It’s in the ballpark of what is considered the minimum level of delivered energy and penetration in a handgun cartridge for bear defense, yeah.

      In other words, against a bear, it may be better than a sharp stick.

      • Our local free weekly had a hilarious article years ago by a female reporter (a lifelong duckhunter who is by no means a “liberal media” anti-gunner) who went to a gun show and kept track of the vast amount of things (from magnums to pepper spray) whose enthusiastic salesmen assured her “would stop a grizzly bear.” This was vital information given the frequency of bear attacks in the 7-county Houston area.

    • I wish you were my therapist a few years ago and given me that same advice. After a failed 20 year marriage and a string of crazy girlfriends…I too wish I could simplify my life ;o) As far as ammo goes…a few years ago I reluctantly added the 44 just because I made a great buy on a Colt Anaconda. Then I added a Marlin lever action and now I’m looking for a Desert Eagle.

  41. Meh. I’m torn on this one. I used to be firmly in the 10mm camp until the folks at TDI corrupted me and turned me into a 9mm fanboy 😆 So, I’m currently carrying the the 17 and two reloads in Crossbreed holsters. But shooting the chubby Glock 20 with full house loads still makes me grin so I’ll probably never get rid of it.

  42. Here are the main arguments against the mighty 10mm.
    1- Price – Expensive to shoot. Limited ammo availability and selection.
    2- Horsepower – Overly powerful for “social work” (as Jeff Quinn calls it). Underpowered for a woods gun.
    3- Controllability – Kicks too much.
    4- Options – Limited firearm selection.

    Here is my take on those points.
    1. – Price – I hand-load which means I can shoot 10mm for the same price as bulk purchased 9mm. Store bought 10mm ammo is pricy, but selection is good and it is readily available at gun stores (Cabelas!) and thru the internet. If you really want or need to shoot cheap steel case ammo, you can get a conversion barrel from Lone Wolf for about 110$ to allow you to shoot .40s&w.

    2. – Horsepower – There are truly excellent 10mm loads for social work. 135gr bullets at ~1450ft/s will really knock the socks off anyone unwise enough to break into my house and are completely controllable. The heavier loadings can achieve muzzle energies in excess of 700ft-lb. That is plenty for hunting deer and black bears. I would not consider it ideal bear-spray for a Grizzly. But I live in Maine and do not worry about such things.

    My bulk hand-loads push a 180gr plated bullet to about 1100-1150ft/s and they knock over steel plates with authority. A full charge of Blue-dot will push a 180gr FMJ or JHP close to 1300ft/s. I put one of those (FMJ flavor) thru a 12in pine tree behind my house. Try that with a .40ShortAndWeak.

    3. – Controllability – There is a grain of truth to this, but people make a far bigger deal out of it than it really is. The fastest/heaviest loads are a bit much. But, you can easily get more power than a .40s&w and still have a gun that is controllable. For example Hornady makes some great XTP loads that give you a more power than a .40 but are not quite at the ceiling for 10mm.
    From the Hornady website: – 10mm 155gr XTP @ 1265ft/s / 551ft-lb
    From Federal’s website: – .40s&w 155gr @ 1140ft/s / 447ft-lb

    With that load there, you get a significant boost in power by going to the 10 but not so much as to make the gun difficult to control. Also, the aforementioned 135gr load (from Corbon) is fast and powerful and is also easy to handle.

    4. – Options – Here I have to give it to the critics. There are not a lot of guns chambered for 10mm. You have your high end 1911’s, many of which come with throated barrels that I do not consider to be ideal for high pressure cartridges like the 10mm. There is the Tanfoglio (EAA) Witness guns, which are not expensive, but are also not widely available and have a bad reputation for Customer Service (thanks to EAA).

    Lastly, you have the Glock G20/29. If it weren’t for the Glock the 10mm would be Dead. Thankfully, the Glock 10’s are excellent and have lots of aftermarket support. Also of note, the newer G20SF and G20 gen4 have reduced the grip circumference to make the gun easier for people to wrap their hands around. It is still a big gun, but not so large as it was before.

    The full size G20 is just the ticket for a Truck gun, or woods gun. You can carry it concealed but it has all the same concealment problems that any full sized pistol has. The G29 is much smaller and is well suited for CCW duty.

    So yes, I really would Rather Shoot a 10mm.

    I am not getting rid of my 9mm because I do like it for certain things, but the 10 does everything (and does it well) that most people could need a handgun to do.

  43. Does a body builder just do curls with a 15lb weight every time? Shooting 10mm will allow most of you a chance to train up. It is not hard to come by its nearly 2013 and the internet is your friend. Underwood ammo is great.

  44. the 40 was derived from the 10mm. the FBI found the 10 had too much recoil for some recruits, they ordered some loaded down ammo. smith and Wesson realized that load would fit in a smaller case and the smaller case would in turn fit in a 9mm frame . eureka! the 40 was born.

    http://en.wikipedia.org/wiki/.40_S%26W

  45. Nope, no desire to own one. I live in a climate where 9MM will do just fine in warmer weather. When potential bad guys start layering clothes for winter, then the .45 is my choice for extra penetration/energy. I shoot both well. I can’t hunt with a semi-auto in PA, so that use doesn’t work for me.

  46. I have a Glock 20SF which handles 10mm recoil easily.I often carry it.It is the best combination of stopping power/ concealable profile I can think of.

  47. Until you actually shoot one, better hold your opinions. I can shoot full out-of-date soup cans with my 9mms and 45s, the cans get holes. With the Underwood 135gr coming out of my Glock 20 with a 6″ Lone Wolf barrel, the can flies up in the air and the top and bottom blow out, and the sides fly so far back the the metal making up the side of the can is COMPLETELY flat. One even flew up over a power line (about 25 feet high).

    Hard to believe a human being, being hit well, would ever make it.

    As far as ammo cost, less than $27 for 50 from Underwood. And that’s 50 rounds, not 20 or 25. Ammo cost is NOT an issue.

  48. I not quite sure what some of you guys are talking about..The 10mm is by far the most versitile round around. It really is. Day by day more people are picking up on this and I could not be more happy. You can own one gun and go from .40 cal power – Bear stoping full loads and you can do it with one g29 gen 4. As for availability, well it’s all over the place out here in AZ and if you look on ammoseek or the other list it ranges from 50 cents – 2.00 bucks for the best you can buy. The 9mm is actually a little more because it’s all gone. Now, I understand that when things calm down It WILL cost a little more but it’s not bad and it’s growing in popularity everyday. I don’t think it’s recoil is bad at all and I LOVE the fact that with one firearm I can gear up for anything the day calls for. Try one, you will love it!!

  49. Well good for you guys, stick to your 45 that everyone in the friggin world has, and which isnt no better than a 9mm. Yea, thats rite, keep lookin at the big bullet thinkin man, thats awesome, lmao. Uh, it goes 800 ft per sec, dont penetrate for shit, and pretty much gets outshined by the 9mm, yea the millitary ditched them junk 1911s for glock nines, ive owned 45s, and sold em, they didnt show me nothin, id rather have a nine, but always wanted a 10mm and now i gots one. More power at 100 yards than a 45 has at the muzzle. oh yea, now thats power. Man up, n put ya cap guns away. And if i see smokey the bear, ill drop his azz with one shot. Peace

  50. 45 acp lovin faggots, i think its funny, all they ever do is dog on the 9mm, and say how weak it is, and how their 45 is like a mac truck etc etc. Then a true gun enthusiast reminds them that the 10mm has more power at 100 yards than the 45 has at the muzzle, and that the 45 is pretty much a pussy caliber, and then it becomes… uh uh well why do you need all that power, thats overkill. Thats ok, they can stick to their mack truck, and pick on the 9mm guys if it makes em feel better, they prob all got big lifted up trucks too. Lol. Just remember to get that piece of junk outta my way when i blast by ya in my ferrari, packin a real gun. Ya clowns.

  51. Love my Glock 20 Gen 4 10mm, but it has failed to feed buffalo bore and one other wide hollowpoint. Hasn’t choked on Hornady Critical Duty yet. It has never jammed on ball. Need more practice to put two shots on target as fast as two 9mm. We had a very large man kill 4 armed cops in a Starbucks here in WA, the last cop was finished with his own pistol. If I am within range to try to stop a guy like that I might as well have the best gun for it, logic says Glock 20. When cops were pinned down 100 yards from two bank robbers with AK’s in Los Angeles, I first started thinking about going from 9 to 10. It makes sense for big guys that don’t mind the recoil. For a lifesaving pistol round, cost really shouldn’t matter.

  52. The 10mm is a fine cartridge that provides a great blend of power and capacity. I love my G29, but people have gotten carried away lately with underwood ammo thinking they have 41 mag power. It’s funny to me

  53. The problem with the 10mm is that it’s too much for SD. The 9mm has greater capacity has better managabilty and has similar terminal performance. As a hunting and woods round the extra capacity is meaningles and the 10mm offers zero advantages over even the 357 Magnum let alone 41 or 44 magnum. The flatter shooting 357 can easily deliver over 800 ft/lbs of energy and offers greater sectional density for superior penetration.

  54. The problem with the 10mm is that it’s too much for SD. The 9mm has greater capacity has better managabilty and has similar terminal performance. As a hunting and woods round the extra capacity is meaningles and the 10mm offers zero advantages over even the 357 Magnum let alone 41 or 44 magnum.

  55. Being Practical will never make or break a carterage..its the name…10 mm just sounds one tick up from 9 mm…its subcontious… Should have named it a .40 super 400 magnum..or the like..

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