The S&W 610 10mm Mag revisited.

[wild cat mccane]

Does your 610 look like this image from the S&W website of the N frame 627 8 shot 357mag?

https://www.smith-wesson.com/product...-627#gallery-6

I do not care for how huge that cylinder is...

[Nanuk]

FPS in a handgun doesn't do what a rifle does. So what does even 400fps more from a FMJ accomplish on target? Modern HST/Gold Dot doesn't need or benefit from massive FPS. Even XTP which is not bonded at the pedals doesn't benefit from high FPS.

I could get into the science of cavitation but that is probably lost here. The higher the velocity (with a proper projectile) makes a HUGE difference. The easiest way for most to understand is to compare the 38 special to the 357 magnum. the 357 with its greater velocity has twice the energy and does significantly more damage.

You of course must tailor the projectile to the task and not all thinks are carved in stone constants. Such as Heavy solids at lower velocities seem to penetrate better than the same projectile at a very high velocity and light fast JHP's do more damage than slow JHP's.

But to your statement, High velocity pistol rounds do make wounds that resemble those made by rifles. Case in point the 357 magnum @ 1350-1400 fps, the 10mm @ 1500-1600 fps.

[wild cat mccane]

And yet? The best 9mm personal defense hollow points typically aren't loaded to NATO or the exceeding +P+ of "Major."

The 1,300 FPS Federal 115gr 9BPLE +P+ isn't even considered "good" any more given better and slower options.

A 9mm HST in 147gr at 1,000fps went as far and expanded as much as one of the best 357mag rounds on Lucky Gunner (Barnes XPD) which flew through the celestial kingdom at 1,600fps.

In FMJ, they are doing the same exact thing on target.

[wild cat mccane]

Kinda exnaying the idea a bit.

I didn't realize how under powered commercial 10mm was across the board. S&B hollow point 180gr is available to buy right now and is rated at 40 level and S&B is known to be hot. AE 10mm is about the exact same as their 40 in the same weight.

Wish 357 would come back in stock somewhere but that isn't happening with 9mm selling like crazy.

Sigh.

[DWFan]

One advantage a 10mm Mag has over the .41 Mag is the variety of bullet weights available. Actually, you can resize .41 Mag cast bullets to have up to 270gr.

[Nanuk]

And yet? The best 9mm personal defense hollow points typically aren't loaded to NATO or the exceeding +P+ of "Major."

The 1,300 FPS Federal 115gr 9BPLE +P+ isn't even considered "good" any more given better and slower options.

A 9mm HST in 147gr at 1,000fps went as far and expanded as much as one of the best 357mag rounds on Lucky Gunner (Barnes XPD) which flew through the celestial kingdom at 1,600fps.

In FMJ, they are doing the same exact thing on target.

Of course you are talking about one test in one medium. I use the street as a consideration. Scientific theory is great, but it must be proven in the field.

[jetinteriorguy]

[QUOTE=Tactical Texan;6838222]Just picked up a new S&W 610 and the cylinder is in the capable hands of Mark Hartshorne at Pinnacle High Performance to be reamed and chamfered to accept the 10mm Mag.
Picked up a spare cylinder from Midwest Gun works in case there are any issues.
I was surprised to find that 10mm and 10mm Mag was easy to come by in these days of shortages and it was reasonably priced.
Picked up 1740 rounds in .40,10mm and 10mm Mag for $1400 bucks.
If I can get rounds for under a buck a piece these days I'm pretty happy.

So any new info out for those of you who have done the 10 Mag conversion?
I've scoured the internet but there's just not a lot of info out there.[/QUOTE
DELETE. Just realized the answer to my question. Think I need another cup of coffee.

[wild cat mccane]

Is there a commercial 10mm magnum load?

[Moenie]

Originally Posted by COSteve

I shoot both .357mag and 10mm and in a 6" barreled pistol, the 10mm using full power handloads (not the under powered factory stuff) is superior to the .357mag. Yep, I said superior. A larger, heavier bullet traveling faster and producing much higher muzzle energy. I'm guessing that the 10mm mag is even better.

Ammo is what you load it to. Loading a 10mm hotter than 357 mag doesn't prove anything.

A .357mag has more case capacity than a 10mm, and thus when both are loaded to their full potential, the .357 mag will produce will produce more muzzle energy every time. That's just plain old physics.

[WESHOOT2]

Hypothetically, in the 10mm Magnum, one might find the highest potential performance using a 180g or 200g XTP over AA9, ignited with a LPM primer, in NEW SIZED CASES ONLY.
Hypothetically.....

For BIG biters most highly recommend 200--220g WFN choices over similar.....

[TruthTellers]

Originally Posted by wild cat mccane

Is there a commercial 10mm magnum load?

Doubletap makes some.

[wild cat mccane]

Warming up to the 610 again.

The price of 40 and 10mm is just to appealing against the no where 357. HST 40 is available for cheaper than most 357/38 options.

The 6rnd cylinder vs the 7rnd in my 686 AND the larger size of the N frame is holding me back from buying the 610 4"......Can't decide...

[sparkyv]

Sure is. POI is usually higher with the 40S&W rounds.

Originally Posted by wild cat mccane

Is your 610 accurate with .40? I'm thinking of bullet jump to the rifling and is it an issue...

[wild cat mccane]

So is life, I convinced myself to buy it based on 40 ammo prices....the one place that had the 4" 12463 went out of stock from yesterday. Doh!