Is the 10mm Round a Trend or Here to Stay?

Steinel Ammunition offers four different 10 mm rounds.
Steinel Ammunition offers four different 10 mm rounds.

Twinsburg, Ohio (Ammoland.com) Steinel Ammunition, having distinguished themselves as the champions of forgotten military rounds and persuasive big bore calibers, put their confidence in a handgun round that although had a brief period of stardom some years back, is back with a vengeance: the 10mm round.

Developed in the early 1980s by the legendary Col. Jeff Cooper, along with Thomas Dornaus and Michael Dixon of Dornaus & Dixon Enterprises, Inc., the 10mm cartridge was what a 9mm cartridge wanted to be when it grew up. The threesome sought a more powerful round than the popular 9mm Parabellum, somewhere between a .45 and a .357 magnum, while maintaining a size similarity to the 9mm for greater magazine capacity. The result was a new, more powerful cartridge and a new heavy-duty combat pistol, the Bren Ten semi-auto pistol. The Federal Bureau of Investigations (FBI) made the round their official round in 1986, but the move was premature. The FBI’s S&W Model 1076 large framed pistols proved problematic and the FBI dropped the 10mm transitioning to another weapon and the soon to be newly minted .40 S&W round.

As a result, the 10mm never really got off the ground. It was expensive, had limited firearm platforms available and more recoil than most consumers wanted, but the idea of a more powerful round than the 9mm never really disappeared. It just went underground. Although many will argue the 10mm is too powerful for defensive use, there is a rising acceptance of the round for just that. Handgun hunters, for the most part, kept the round alive, as it was a proven performer in the field capable of dropping mid-sized whitetail and feral hogs.

As of recently, there were a few choices for 10mm pistols on the market but that has changed in the last few years, with all the big-name players now in the market. And many ammunition manufacturers are also rolling out 20-count boxes of their version of the 10mm round. Yet, ask the 10mm diehards and many of them find the off the shelf rounds lack the power and velocity which makes them less effective for ethical hunting practices. That’s where Steinel Ammunition comes in.

When Andy Steinel, president of Steinel Ammunition, and his team decide to develop a new load, resurrect a forgotten round or revamp an existing load, they do so because they’ve done their homework. Steinel utilizes his social media platforms and gun show experiences to ascertain what calibers people are talking about and asking for. The 10mm was one such caliber, but Steinel wanted to develop effective loads that gave the concealed carry person all the confidence they needed and the handgun hunter real put-down power without the high price.

Steinel Ammunition 10 mm 140 gr. SCHP
Steinel Ammunition 10 mm 140 gr. SCHP

Steinel Ammunition has four offerings in 10mm. For individuals that want a more powerful self-defense round, the 10mm Auto 140 gr. Solid Copper Hollow Point (SCHP) lead-free round meets the FBI standard and rocks out at 1,500 FPS. At only $22.99 a box of 20-count, you get a premium round at a price below the competition.

Putting rounds down range is great for muscle memory practice but hard on the wallet. With Steinel Ammunitions’ 10mm Auto 180 FMJ you get 50 rounds per box of highly accurate and clean shooting 10mm for any 10mm firearm. And 50-rounds of this 10mm will only set you back $27.99 per box.

Really looking for value in a 10mm round, the 10mm Auto 180 gr. JHP Golden Saber is a sure bet at only $19.99 a box of 20-count. This 10mm round has a 1,125 FPS with a 4.5” barrel.

Handgun hunters will appreciate Steinel Ammunitions’ 10mm Auto 200 gr. Hard cast round constructed of hard cast BNH22 and a truncated cone (TC).  This round excels in penetration and accuracy with a velocity of 1,200 FPS in a 5” barrel. Hard to beat at $19.99 a box of 20-count.

Steinel Ammunition 10 mm Auto 200 gr. Hard Cast
Steinel Ammunition 10 mm Auto 200 gr. Hard Cast

“You have choices with our 10mm line,” Steinel summed up. “We have a projectile for hunters, conceal carry and self-defense, and target shooters, all developed in-house to give the user superior results and accuracy. One recent customer experience says it all, “I actually reloaded for 10mm. I initially bought Steinel 10mm FMJ for the new Starline brass…and to get a benchmark for my [own] loads. Now, I don’t bother. Mine were a little more accurate, but it’s no longer worth [my time]’.’”

For more information on Steinel Ammunition Co., visit www.steinelammo.com or follow along on Facebook or Instagram.


About Steinel Ammunition Co.:

Steinel Ammunition Co.

Steinel Ammunition Co. is a premium manufacturer of self-defense, hunting, and target ammunition. While other manufacturers may have a specific product line designated as “match” or “premium,” at Steinel—premium ammunition is all we do.

When you use Steinel pistol or rifle ammo, you can be sure that countless hours of research and testing have gone into every round. Each recipe, component, and assembly are designed to provide you with optimal performance.

Our passion for precision, repeatability, accuracy, and reliability drives our pursuit of perfection. Let our attention to every technical detail provide you with the ammunition you and your gun deserve.

We stand by our products 100 percent with a Satisfaction Guarantee policy.

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RoyDFirewagonEj harbetras52Wild Bill Recent comment authors
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ras52
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ras52

Thank you to Steinel for giving shooters more to choose from.

Firewagon
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Firewagon

Glad to see another provider for the 10mm in the arena! Did have to chuckle, just a mite, about the “…. it’s no longer worth my time….” to reload from a Steinel user. Can’t be a ‘true’ reloader, as part of that program is not simply about ‘saving money.’ Though, whatever amount you do save, prolly doesn’t ‘save’ you money, but it does enable you to shoot more! Best comparison, however, is my experience. Steinel lists their ‘good’ defensive stuff @ $22.99 for 20 rounds, or right at $56.47 for 50! My ‘carry’ load, which mirrors the Buffalo Bore 10mm/180… Read more »

ras52
Member
ras52

Firewagon, you are right about that. Reloading saves money and is pure personal satisfaction.

cav2108
Member
cav2108

I wouldn’t even call it a “trend”. More like an afterthought or something to interest otherwise bored shooters. Another unneeded cartridge that demands additional new hardware and magazines.

Firewagon
Member
Firewagon

Unneeded? Eh, not so. The main reason I carry a G29, which gives me near .41 magnum power in a ‘pistol,’ that has a high capacity capability (26 rds on tap with only one spare magazine), light, and small enough to conceal, is that NOBODY else makes such! Many rate it in power to the .357; however, the full 10 is closer to the .41 than the .357 in that category. Those that love the 9mm and the venerable .45 say much the same about “no need.” Neither of those calibers can come close to the energy that my short… Read more »

Wild Bill
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Wild Bill

@Cav, The bigger the firearms industry gets, the more the American economy can not do without it. If this “something to interest otherwise bored shooters.” adds to that, then why not.
Besides some new and interesting thing at the barbecue to support your favorite “not corrupted yet” candidate is a good thing!

Ej harbet
Member
Ej harbet

As much as i love the 45acp and tolerate 9mm now and then the 10 loaded hot has a place.
Not being much of a wheelgun guy and of the opinion 50ae is too much ill chose a glock 40 if im going in to certain forests

Scotty Gunn
Member
Scotty Gunn

1125f/s for a 180 grainer? Blech. I am running 175 silvertips at 1450.

RoyD
Member
RoyD

My top 10mm load with a 180gr bullet is: 180gr Berry’s JHP, Starline brass, Winchester Large Pistol primer, 10.0 gr Longshot powder, 1.240″ LOA and fired out of my Gen3 G20 with a Lone Wolf factory length barrel, at 65 degree air temperature. Muzzle velocity is 1360 fps. I have a 24 pound recoil spring and steel guide rod. That is 740 ftlb of energy. It is controllable (for the first few rounds anyway) but a handful.

Firewagon
Member
Firewagon

An example, perhaps, why using OP’s (other people’s) data might not bode well. Not sure about any Berry’s bullets, but Quick Load with most 180 JHP bullets from other makers, indicates this 10 grain Longshot load to exceed the SAAMI max 37500 by nearly 10,000 PSI! Just a precautionary note;) The estimated MV using the Speer 180 GDHP from QL is close @1322 fps.

RoyD
Member
RoyD

It is funny that you go on about how my load, “exceeds the SAAMI max 37500 by nearly 10,000 PSI!”, and yet you state in another that your “‘carry’ load, which mirrors the Buffalo Bore 10mm/180 grain GDHP loading.” So you admit that your 180 handloads are moving out at 1350 fps. As shown here: https://www.buffalobore.com/index.php?l=product_detail&p=114 Sorry, there is no free lunch when it comes to loading ammunition. Similar results come from similar conditions. To answer your challenge about the 40 S&W Long loading here is the data from my load sheet: Federal nickel plated 40 S&W case, 180gr HST… Read more »

Firewagon
Member
Firewagon

The 37.5K is for the 10mm, 35K is SAAMI max for the 40. Sorry if I got’em crossed up. “So you admit that your 180 handloads are moving out at 1350 fps.” Never said that. Only indicated my ME @624 out of my G29, but BB runs from 1225-1250 fps from that 3.78″ rig as does what I worked up. I do get over 1400 fps from my BarSto ported 6″, which approaches 800 FPE! Have not run the BB from the 6″ over the chrono, but since the numbers are comparable out of the shorter barrel, I would guess… Read more »

RoyD
Member
RoyD

You can deny it all you want, here is a question for you. Does “mirrors the Buffalo Bore 10mm/180 gain GDHP loading” not mean what it says? You might be able to fool the ignorant but that won’t work with me. Glad to see another provider for the 10mm in the arena! Did have to chuckle, just a mite, about the “…. it’s no longer worth my time….” to reload from a Steinel user. Can’t be a ‘true’ reloader, as part of that program is not simply about ‘saving money.’ Though, whatever amount you do save, prolly doesn’t ‘save’ you… Read more »

Dr. Strangelove
Member
Dr. Strangelove

I like Underwood’s 180 gr. GDHP which leaves a 5″ barrel at 1300 fps. That’s real 10 mm velocity.

Ned2
Member
Ned2

I’m a recent convert to 10mm.
Tried a friends pistol and loved it. No noticeable recoil difference from some of the 9mm pistols I own. Ammo can be had for around 25 cents a round, hopefully the cost keeps going down.

noneoftheabove
Member
noneoftheabove

I think some have been looking at the wrong 10MM ballistics info. You’l never get the power of the 10MM from any 40short&weak case(.) Add all the pluses that want.
When used in a carbine it’s even more powerful.

RoyD
Member
RoyD

Your second sentence is incorrect as it is written. I use 40 S&W cases and load to the top levels of 10mm performance. Of course to do this I use a 40 S&W conversion barrel in my G20 that is throated so that the bullets can be loaded to 1.25″ overall; the same as 10mm. This is generally referred to as “40 S&W Long.” If you stay within SAMMI specs for 40 S&W your statement is correct.

noneoftheabove
Member
noneoftheabove

“Of course to do this I use a 40 S&W conversion barrel in my G20 that is throated so that the bullets can be loaded to 1.25″ overall; the same as 10mm.”

So If were to do this ‘out of SAAMI recommendation with the 10MM I’d still be right… right. But I love hands and my pistols.

RoyD
Member
RoyD

Everyone should know their limitations. Sounds like this is something beyond your understanding so, yes, you should refrain at this time in your life.

noneoftheabove
Member
noneoftheabove

@RoyD: I misunderstood nothing at all. If I were to special order a barrel for 10MM with expanded lands to do what you’re doing with a 40 short&weak barrel. Your so-called catch up ballistics would be negated. Correct!?
Going outside of SAAMI stats and being successful does not make it safe. Shooting on a regular basis over pressured rounds in cases and a chambered barrel not designed for such is just plain STUPID.
Why buy a G20 then swap out the barrel only to handload for a 40 short&weak barrel only to achieve 10MM full power by exceeding SAAMI Standards?????

RoyD
Member
RoyD

Again, it is obviously beyond your comprehension at this time. You can change that with study and thought if you wish to. That is up to you.

Firewagon
Member
Firewagon

I think I passed reading comprehension 101. So comprehending what you are saying, or understanding it, does not take a rocket scientist. You r telling us you have a G20, bought a 40 S&W barrel, specially “throated,” just in order to shoot fully comparable loads, that rekasemble the full 10mm, out of that shortened .40 case? I think there has to be a WHY in there somewhere. There are just a few notes for what appears to be a troll post, and at best a BAD idea for anyone to take up. 1) The ‘Y’ when you already have the… Read more »

RoyD
Member
RoyD

Once again we have someone who does not understand that which they are trying to expound upon. As I told that other person, you can cure your ignorance if you wish too. That is up to you.

Firewagon
Member
Firewagon

Wanna prove your point, just provide ‘we the ignorant’ with the specifics for that loading that gets you the 10mm numbers.

24and7
Member
24and7

They should just make a 40 +p..thats what a majority of what most so called 10mm ammo is..Norma made the only real 10mm round..

Firewagon
Member
Firewagon

They are already out there. The issue remains the same. You can not get 10mm performance from that short .40 S&W case. Buffalo Bore builds some of the hottest stuff in nearly any handgun caliber, and claim to be SAAMI safe. Their .40 +P 180 grain HP runs 1100 FPS, their 10mm, with the same bullet, goes 1350! As I tried to explain to RoyD, who would have you believe you can do with that short and weaker case what is possible from the full 10mm, it just ain’t so Joe – you merely are attempting to either destroy your… Read more »

RoyD
Member
RoyD

See my post to you above.

Firewagon
Member
Firewagon

See my post to your post above. Give us the dope or admit to being a troll.