View Full Version : .40s&w loaded to 10mm specs?
I've seen a few posts over on beno's forum about guys loading .40 to 10mm OAL. A few have suggested that 10mm load tables could be used at that point but the more powerful loads are questionable.
So I'm interested to hear what you guys have to say. If I could get a .40 round loaded to 10mm OAL to feed propperly, could I put a stout 10mm powder charge through it safely?
:chicken: Or :blast: ?
slowride
03-30-2008, 08:03 AM
I personally wouldn't attempt. I'll stick with my 155gr Rainiers, 6gr Unique, w/ OAL @ 1.130-1.135.
I haven't grown tired of them yet, and don't expect to anytime soon. Call me boring, but I don't do any adventurous reloading, I pretty much stick to specs.
WalterGA
03-30-2008, 08:08 AM
Other than having something to post about on forums like this, what's the point of such sophomoric machinations? :wink5:
Sophmoric machinations?????? :sosp:
You can achieve standard 10mm velocities at standard .40 S&W OAL with Hodgdon's Long Shot powder. There's no need to load long, becides your G23 won't accept such rounds. They are reserved for 1911's.
Steve Koski
03-30-2008, 09:53 AM
What they said!
Sophmoric machinations?????? :sosp:
machination
One entry found.
machination
Main Entry: mach·i·na·tion http://mw4.m-w.com/images/audio.gif (javascript:popWin('/cgi-bin/audio.pl?machin04.wav=machination')) Pronunciation: \ˌma-kə-ˈnā-shən, ˌma-shə-\ Function: noun Date: 15th century 1 : an act of machinating (http://mw4.m-w.com/dictionary/machinating) 2 : a scheming or crafty action or artful design intended to accomplish some usually evil end <backstage machinations…that have dominated the film industry — Peter Bogdanovich> synonyms see plot (http://mw4.m-w.com/dictionary/plot)
Steve Koski
03-30-2008, 10:14 AM
If a full power Longshot load in 40 aint enough for you, then you should get a 10mm, or a 500 S&W mag.
Steve Koski
03-30-2008, 10:15 AM
Personally, I feel the 500 S&W Mag has more vaporization power, but it is slightly less concealable.
Clark
03-30-2008, 10:22 AM
With full case support, double compression of powder, and resized loaded ammo:
40 sw small primer brass with 1.171" OAL can support 15.5 gr 800X 200 gr in my G22
10mm large primer brass with 1.3" OAL can support 14.3 gr 800X 200 gr in my G20
What does it all mean?
A 1.3" 40sw is more powerful than a 1.125" 40sw, which is more powerful than a 1.3" 10mm.
And hardly any slide-mass-recoil-springs can support the recoil the above loads produce.
Your pistol frame, the joints in your hand, and the nerves in your hand would not hold up.
Those 40sw loads are 44 mag max loads in a smaller volume. A pistol that can support a 44 mag recoil may, with increased recoil spring force, be able to handle the 40 sw potential.
A desert Eagle would be good for the 40 sw loaded hot, but then I worry about if your arms are massive and strong enough, as seen in this video:
http://www.youtube.com/watch?v=dFJjaj7pXsA
4eyes
03-30-2008, 10:27 AM
OK, Oreo. That'n should keep you busy. Report back after your trials.
Steve Koski
03-30-2008, 10:48 AM
That was just mean! Here 75 lb woman, shoot this gun so it conks you on the head.
What was the velocity from those 200 grainers w/15.5grs of 800x?
Steve Koski
03-30-2008, 11:30 AM
IIRC, Clark doesn't chrono his nuke-you-ler rounds, just testing for gun survival.
Clark, are you SERIOUS??!! 15.5gr??!!! in a .40??!!!
That just sounds too ridiculous to be true. But damn, I'm intrigued.
Steve Koski
03-30-2008, 12:29 PM
Be sure to weld up a barrel for 100% case support.
and double-up on recoil spring weight.
Brass Nazi
03-30-2008, 01:50 PM
and wear a condom.
colorado4wheel
03-30-2008, 02:00 PM
Why would you want to max out the .40 any more then it already is?
http://i60.photobucket.com/albums/h27/Mohaaplayer/a5ae4fb030-1.jpg
Brass Nazi
03-30-2008, 02:21 PM
Now that is funny.
Clark
03-30-2008, 03:26 PM
and wear a condom.
If I were the guy in the video, yelling get your tongue back in your mouth, I would have worked up a load for her slender frame.
You know what I mean, she just doesn't have the hand and arm mass.
Why would you want to max out the .40 any more then it already is?
At this point, when I ask these kinds of questions I'm more interested in learning & understanding what's possible. It's an educational sort of question. It's not because I'm particularly interested in doing it.
SlammedDime
03-31-2008, 10:39 AM
You can achieve standard 10mm velocities at standard .40 S&W OAL with Hodgdon's Long Shot powder. There's no need to load long, becides your G23 won't accept such rounds. They are reserved for 1911's.
+1... Tis what I use in my carry loads. Longshot provides some very stout loads in .40, and fortunately high velocities without any overpressure signs (in my G23 anyway).
freakshow10mm
03-31-2008, 11:09 AM
The long loaded 40S&W has been done for a while. Your chamber needs to be throated. This, as stated above, works better for 1911s than other guns.
Clark
04-01-2008, 04:52 PM
If you search published loads, you will be lead to LONGSHOT, but from experimentation, you will be lead to 800X, although LONGSHOT Is up there in the top 10.
freakshow10mm
04-01-2008, 05:06 PM
Longshot is the rebirth of HS7, according to Hodgdon.
Clark
04-02-2008, 05:24 PM
Longshot is the rebirth of HS7, according to Hodgdon.
I have in my rumor notes that HS7 = W571
Where did Hodgdon say that LONGSHOT = HS7?
They told me that a computer guy dropped most LONSHOT from one of their publications, they fired him, and LONGSHOT would be back the next year.
VN350X10
06-22-2008, 04:33 PM
We ran a .40 S&W conversion barrel in Brian's G20 open IPSC gun. By loading to 10MM length, the feeding was 100 %.
A lot of 40 conversions from 10MM don't feed well because the ammo is too short for the magazine.
Since a 40 makes major power factor easily, there's no need to load a "real" 10MM for IPSC.
Unless you enjoy freaking out people when a steel popper "dribbles" as it hits bottom !
A 180 gr @ 917 fps = Major PF.
uncle albert
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