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Old May 10, 2007, 12:29 AM   #1
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Need 9mm load data for W-231, 124 FMJ's

I've been looking and looking, but I'm coming up less than short on load data.

If anyone has data for:

CCI 500 primers
Winchester/Speer cases
W-231 powder
and the kicker: 124 grain FMJ bullets (mine are from Zero, all the shop had)

All I've been able to find is an older booklet from Winchester. Doesn't list OAL, and the powder charges seem on the high & narrow side. Actually, all is DOES list is powder charges - not much else.

None of my manuals list more than one or two loads for 124 FMJ's, and none for 231. I understand that 231 isn't the most ideal powder for this cartridge, but it's all I have right now. I can't afford to buy a different powder right now. I do know that it's safe, and that's what matters - I just need some data!

Looking to duplicate factory range ammo with this load as much as possible. Will be fired in a Taurus PT-92 autoloader. I just want something safe & reliable.

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Old May 10, 2007, 06:42 AM   #2
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I use 4.0 grns of 231 under a 124 grn FP 1.130 COL. not too snappy, very controlable recoil.
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Old May 10, 2007, 08:41 AM   #3
Trapper L
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From Winchester:
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Old May 10, 2007, 08:58 AM   #4
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Insert the usual disclaimers here: Use these loads at your own risk!!!

Looking it up in my "everything 9mm" loading book, I see where Winchester is listing the following for 9mm 124 gr FMJ:

Powder: 231
Primer: WSP
OAL: 1.169 max
Start charge: 4.2 28800 PSI 1005 fps
Max charge: 4.5 32700 PSI 1060 fps

Now, knowing that 231 and HP-38 are one and the same powder, I looked at what Hodgdon has listed for their equivalent load, based on a 125 gr Sierra FMJ:

Powder: HP-38
Primer: CCI 500
OAL: 1.090
Start charge: 4.4 24600 CUP 1009 fps
Max charge: 4.8 28800 CUP 1088 fps

In the same book, Sierra has a listing for 231 in their 125 gr FMJ as well:

Powder: 231
Primer: WSP
OAL: 1.090
Start charge: 3.9 ? pressure appx 900 fps
Max charge: 5.1 ? pressure appx 1100 fps

Speer has the following listed for their 124 gr JSP:

Powder: 231
Primer: CCI 500
OAL: 1.120
Start charge: 4.0 ? pressure 887 fps
Max charge: 4.5 ? pressure 998 fps

Never having loaded this powder with that weight of jacketed bullet, I can't vouch for any of the above loads. I HAVE loaded this powder with 115 gr jacketed bullets and had good results. I HAVE loaded this powder with 124 gr LEAD bullets with good results.

And of course (repeating myself just to be safe), the usual disclaimers apply -- use these loads at your own risk!!!
Formerly lived in Ga, but now I'm back in Tx! Aaaand, now I'm off to Fla...
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Old May 10, 2007, 01:43 PM   #5
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Thanks muchly!

This is what I have.


Winchester Components Catalog & Reloading Guide
Copyright 1999
Page 22

9mm Luger
124 gr. FMJ
Powder: W-231
Start: 4.2 gr.
Vel: 1005
Press: 28,800 psi
Max: 4.5 gr.
Vel: 1060
Press: 32,700 psi

That's it. No further data. Pretty narrow range, eh?

Thanks again, esp. to gb_in_ga!
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Old May 13, 2007, 09:34 PM   #6
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E-mail Winchester and ask them to send you a manual. They're FREE . Don't ask for powder charge info on the internet.
If you think a mighty military force is expensive, wait 'til you see what a weak one costs.
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Old March 13, 2008, 02:37 PM   #7
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I put some 124 gr berry's plated bullets on top of 4.1 grains of 231.

The resulting ammo was very weak, and would sometimes not even lock the slide back on my Glock 17.

I plan to try a hundred rounds with 4.3 grains this weekend.
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Old May 25, 2011, 06:56 PM   #8
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Location: Central Queensland
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Some of the latest online load data from Winchester is very different to the older Win data that was always very reliable, for example with a 115g LRN the old data for 231 was 3.8 - 4.2g of 231 but the new data for the same powder and projectile is 4.3 - 4.8g.

Something is very wrong with the Winchester data online so check your load data against proven older data.
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Old May 27, 2011, 09:53 AM   #9
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As stated before, be careful with powder loads from the net. However, this is what I am currently loading for my 9mm.

with mixed brass
231 at 4.5 grains.

Getting about 1044 avg. with a 10 shot string on the crono.

I use 231 for my 9mm and 40.
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Old May 27, 2011, 10:24 AM   #10
Miata Mike
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I use 4.0 to 4.1 grains with 124 grain lead bullets, so the 4.2 to 4.5 grains doesn't sound too bad for your FMJ.

I am very happy with my combo using the lead bullets!
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Old May 27, 2011, 11:59 AM   #11
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I like Win 231 in 9mm.

4.6 grains.
124 gr. LRN
COAL 1.120"
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