Lack of interest in 40 SW yet 10MM is getting popular??

I have yet to have a revolver fail. I have shot thousands of 40 rounds over the last 30 yrs. I have had semi autos jam double feed etc. As far as the 10mm room to load hotter. They have. To what avail? There are 40 loads listed at 1050 or higher. What does 150 fps and 20 grs of bullet weight get you? I have shot deer,pigs, even a cow. All cast lead at 1,000 fps or less. Trend is just put a bullet in the case for a gun not desigined for that bullet weight. Semi autos are tied to ammo and function.


I've had a couple of revolvers fail. All were ammo related.

I've got thousands of rds in USPSA matches, 3 Gun matches & steel plate matches. I used 3-4 different guns over the years, all were 100%.

Last I looked, pigs, cows & deer neither shoot back nor take cover behind steel doors or cars. Thugs do, which is where the 10mm shines with the extra HP.

Cor-bon shows their 165gr 10mm as follows:
  • Muzzle Velocity: 1250 fps
  • Muzzle Energy: 573 ft-lbs

Cor-bon shows their 165gr .40 as follows:
  • Velocity: 1150 fps
  • Energy: 485 ft-lbs

That's a pretty good leap in energy there, IMO. I'll take that when car windshields & other hard objects come into play.

The only one who can save MY life is ME. I'll take the 10mm, Alex......................
 
Boy this thread went sideways.


Not really.

It asks why the .40 was waning & the 10mm picking up steam & people are on both sides of it (big surprise there! LOL)

For a long time, the Delta & Glock 20/29 were about the only 10mm options. Now, there's all sorts of options, both striker & 1911-style. Heck, even FN & Springfield are making them and, more importantly, selling them!

Ask any gun shop owner & he'll tell you quickly that the .40 is a far, far distant seller from other calibers.
 
The 10mm is a reasonably packable high powered handgun. I have a 6" Dan Wesson. It's big, but slim. Works well as my hunting handgun. I'd certainly carry it for defense, but it's a bit tough to hide.
 
I enjoy the 40S&W and 10mm and reload for both. Toting 15+1 rounds of energetic 10mm rounds is very compelling to me.
10mm is being recognized for its 357mag power in a semi.



But I confess, this is my favorite 10mm handgun:
20250426_105733.webp




I find them both equally amenable to handloading.
10mm is supposed to be more amenable to handloading than 40 S&W. I suspect that is the attraction.
 
Loves me some 10mm, hate the .40.

Let me say first, I'm not a reloader. I have been told that there's no such thing as +P .40. Someone correct me if I'm wrong there.

But I've also been told that there's room in the 10mm loadings to safely run up the velocity a decent bit.

When I shoot steel plates with one of my 10mm guns, the plates react a LOT more violently over both .45acp & 9mm. In short, they're just wicked, wicked fun to shoot reactive targets with.
How does the 10mm impact on the plates compare to a full-powered 357 Magnum?
 
I do not own a 10mm but have shot several belonging to range patrons who are serious hunters and use them for hunting. They are nice and accurate and function well, I just don't need the extra power (and recoil) for punching paper and dinging steel. And I don't hunt so will stick to my "regular' calibers.
 

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