10mm Revolvers

[Sean Smith]

What will the cartridge do that cant be done by what exists already? Nothing.

It is very simple. What autoloader cartridge matches magnum revolver ballistics and can still be chambered in a gun of practical size?

There is exactly ONE practical answer to this question: 10mm Auto.

.357 Sig is too weak by about 200 foot-pounds, and ballistics fall off like a rock if you want bullets heavier than wee 125 grainers.

Some calibers that amount to wildcats are in the running... 9x23 and 9x25, .400 Cor-Bon and .45 Super. But those make 10mm look like .22LR when it comes to ammo availability. .460 Rowland is great, but without an external comp it will pound most autoloaders to bits. Ditto .40 Super.

All of the above are great calibers, and if you handload for them may be very practical for you. But 10mm ammo can be had as cheap as $160/1,000+S/H.

http://www.georgia-arms.com/pistol.htm#ee

.45 ACP? At 100 yards many 10mm loads have more kinetic energy than .45 ACP +P loads have at the muzzle. Compare the bullet drop you get from 850-950 ft/sec to bullet drop from 1,200-1,400 ft/sec and it is apparent why 10mm is orders of magnitude better for hunting or shooting at longer distances than .45 ACP. GI hardball is about 370 ft-lbs, by the way.

For self-defense, this isn't an issue... 180gr @ 1,330 ft/sec is probably a bit much for that, and with more reasonable loads most calibers are more or less a wash. But handguns aren't only for self defense against people.

As for revolvers, .357 Magnum or .41 Magnum are probably better choices for most people than 10mm, although the advantages (moonclips, cheap .40 S&W bulk factory ammo for plinking) have been noted.

 

[rgc]

Oh brother.

All this bickering back and forth . . . . yada, yada, yada. All I have to say is that 3" S&W 610 for carry, well, it was just plain and simple . . . what a COOL GUN!

ps.
I love to see a 3" GP100 in 10mm too.

 

[JShirley]

In terms of information...one deigns to offer a suggestion of ammo that is widely varying in QC and is, at best, a gimmick, and be insulted when not taken seriously? C'mon. If you can't laugh at yourself, you're gonna be crying a lot.



John

 

[10mmman]

10mm SUCKS!

Oh wait a minute, - Nevermind.

Seriously, I have a 5" 610 reamed to 10mm Mag. I can shoot a 135 .40 S&W load at 1100 fps, in an N frame it kicks like a .38 in a 686. My 10mm Mag loads (Beartooth 200 gr w/ canalure or 220 LFP) are clean into the .41 Rem Mag's lunch. I've shot 8 large Iowa whitetails with it in standard 10mm guise - 200 gr. XTPs at 1150 and only once had the bullet fail to go T&T- that one was stopped by the hide on the far shoulder. I consider it THE most efficent large deer caliber to 75 yds. to get A) High lethality and B) moderate to low recoil. I've won pin matches with it, carried it in a Kramer scabard frequently and done very well with it in IDPA.
I've wildcated a duplex 10mm Mag load that spits 2- 135 gr. Nosler loads at 1100fps- (really helps the IDPA scores.)

Clearly the 610 sucks. But what do I know.


X

PS- check out the " Guns You'd Like to See Them Make?" thread & count the ratio of 10mm to all other calibers listed http://www.thehighroad.org/showthread.php?s=&threadid=76721

 

[tex_n_cal]

<shrug>

to each his own. There are some guys who would be perfectly satisfied with a 55 mph speed limit, too

The 10mm, in a 1911, is a 10 shot .357 magnum.

In a 610, no, it isn't a .44 mag, nor even a .41 mag. It may not even really be a .357 magnum, if the .357 is loaded to the strength potential of a Model 27 or 28.

As far as I know, though, the .41 mag has never been loaded in one of those dee-lectable 5" or 6.5" full underlug Smiths, and that's as good a reason as any to have a 610.

edited to fix my one-letter typo, even though ya'll knew what the heck I meant.

 

[The Rabbi]

I'd be satisfied with 55 miles per gallon out of my Chrysler, no question.

 

[Wil Terry]

WELL IT IS OBVIOUS TO ME GREAT MINDS THINK ALIKE, WHICH IS WHY,

I had Hamilton Bowen re-build a 1965 RUGER BLACKHAWK 357MAG 4 5/8" to 10MM NORMA [ the correct cartridge name ] over 12 years ago. It shoots like a million bucks and has been an utterly reliable companion. The original barrel was rebored from 35 to 40 caliber, the cylinder was rebored and rechambered to 10MM, the entire pistol was refit, and the whole package reblued to include the hammer 'cause I hate those ugly white sides on a hammer. The left side of the frame is remarked "10MM RUGER BLACKHAWK " in the proper order and size and you would swear on a minor stack of bibles it was a real 3-screw ruger 10MM sixgun from 1965.
Loverly !

 

[gunfan]

That Ruger sounds as if its "hell on wheels." I just adore that cartridge! In a Super Blackhawk with a 7 1/2" barrel, the proper loads can quickly eclipse the mid-range to upper mid-range .41 Remington Magnum loads! These 200 grain bullets smoking along @ about 1350 fps would make Bambi's daddy fall down, go BOOM!

The slightly smaller meplat would make this type of load a real penetrator for Boar and Black Bear. This would definitely kick some serious boar booty!

Scott

 

[10mmman]

"I'd be satisfied with 55 miles per gallon out of my Chrysler, no question.

From your mouth to G*d's ear.

 

[Onty]

10mmman

10mmman, did you mentioned few years ago 10 mm load, 200 gr, 1.400†OAL loaded round, leaving 6.5†barrel at 1400 fps? This would be ideal load for silhouette shooters, and, I suppose, excellent for deer hunt. Somebody posted in Shooters.com thread about 401 Herter’s Powermag, how he and his shooting buddies went on range shooting 401, 44 and 454. Well, his friends shooting 44 had to stop after several dozen rounds (454 shooter even sooner) because sore wrists just couldn’t take any more. He was shooting 401 until was time to leave the range and no sore wrists. I was shooting couple dozen rounds of Keith load (Lyman 429421 with 22 gr of 2400) from TLA #5 without the problem, but after that, wasn’t fun any more. Some folks could take more, but for us average guys, no thanks.
Why 10 mm didn’t succeed? Because the most popular semiauto is 1911 and this design just isn’t strong enough to take full load 10 mm indefinitely. Yeah, there is Glock out there, but it’s like comparing jazz with rock ’n roll and country. Regards, Onty.

 

[10mmman]

Yup.

Here you go- (re-post)

USE AT OWN RISK
1st- this is a revolver load only.
2nd- Unfluted cylinders are stronger than fluted because they are butt-ugly- ugley is strong- just look at Ruger revolvers.) I have touched off tons of these in my fluted 610. Presure signs are far less than a factory Cor-Bon load.
3rd If you kb don't look my way-
4th My 6.5" 610 shoots this into 8"@ 100 yds all day long.
5th This will cleanly slay any whitetail under 50+ yds if you hit the vitals.
6th Use with care, start below & work up.

Hornidy 200gr XTP 14.2 Gr AA#9 COAL 1.4
Shooting Crony said it's a bit over 1350fps.

I arrived at this by interpolating the average load for 200gr XTPs with 10mm and 10mm mag Accurate Arms data after I eastablished that the 200gr bullet would seat at least as deep in the case as a 135 Cor-Bon seats. This gave me a COAL that is 1/2 way between 10mm & 10mm Mag. Recoil is NOTHING like a .44 mag.
X


Second re-post: This evloved from a sucessful .41 RM to .401 PM conversion I did- works best w/ revolvers that have champered charge holes:

If you buy .41 mag rounds, case trim them down to your chambers length, pop ‘em in the oven @ 170 degrees for 20 minutes, set them ON TOP of a shell plate, then run them into a Dillon sizing die that’s been coated with One Shot and drive ‘em back out with a dowel, (check primer holes) you gots yosef a 10mm Mag Rimmed. Load to normal 10mm Mag specs. Accurate Arms has 10mm Mag data online, make sure you do not load the high-pressure loads, only the loads set for 10mm pressure (mid 30K.) One could trim down to 10mm & 40 S&W & skip the clips or .401 HP.

Be safe.

x