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Winchester Powder Data

Discussion in '10mm Reloading Forum' started by BuffaloBo, Jul 22, 2004.

  1. bubllehead

    bubllehead

    130
    0
    Nov 5, 2006
    I stopped at Cabela's today( :tempted: ) and looked at a couple loading manuals, bought one. They both list 231 and my new Lyman 48th calls it out for top accuracy w/ most bullets. As above the maxes are much lower than listed here.(6.6 gr. for the 180 gr. jhp @ 1125 fps)
     
  2. MakeMineA10mm

    MakeMineA10mm * * * * Millennium Member Lifetime Member

    1,955
    5
    Feb 13, 1999
    Central Illinois
    Yes, Winchester put out a ton of 10mm data for all of about one year, maybe two. Luckily, I have the 1993 Winchester load guide, which I'll post some of the more useful loads from here.

    All of this data is with the following components and set-up:

    Case: Winchester
    Primer: Winchester Large Pistol
    OAL: 1.260" (all loads, regardless of different bullets being used)
    Barrel: 5" (does not state if the velocities are from the pressure bbl., but I'd assume so)

    Powder Start Max Velocity Pressure
    200gr FMJ (Winchester)
    W571 8.3grs 9.3grs 1070 fps 35,600 psi
    W540 7.5grs 8.6grs 1090 fps 35,600 psi
    WSF 5.2grs 6.2grs 1020 fps 35,600 psi
    W231 4.6grs 5.6grs 1000 fps 35,600 psi
    WSL 4.0grs 5.0grs 0960 fps 35,600 psi
    WST 4.6grs 0890 fps 35,600 psi
    W296 DNR 11.6grs 0940 fps 23,600 psi

    180gr JHP (Winchester)
    W540 7.4grs 9.4grs 1180 fps 35,600 psi
    WSF 5.7grs 7.1grs 1150 fps 35,600 psi
    W231 5.2grs 5.8grs 1050 fps 35,600 psi
    WSL 4.8grs 5.6grs 1060 fps 35,600 psi
    WST 5.0grs 5.5grs 1010 fps 35,200 psi
    W296 DNR 12.6grs 0990 fps 22,400 psi
    W571 8.3grs 10.2grs 1170 fps 35,600 psi

    170gr JHP (No stated brand)
    W540 8.0grs 9.9grs 1250 fps 35,600 psi
    WSF 6.0grs 7.5grs 1210 fps 35,600 psi
    W231 4.7grs 6.3grs 1120 fps 35,600 psi
    WSL 4.1grs 6.0grs 1130 fps 35,600 psi
    WST 4.5grs 5.5grs 1020 fps 29,500 psi
    W571 9.0grs 10.8grs 1240 fps 35,600 psi

    155gr JHP (No stated brand)
    WSF 6.8grs 8.4grs 1320 fps 35,600 psi
    WST 5.0grs 8.0grs 1220 fps 31,900 psi
    W231 5.8grs 7.3grs 1250 fps 35,600 psi
    WSL 5.4grs 6.9grs 1250 fps 35,600 psi
    W571 9.7grs 12.0grs 1350 fps 35,300 psi
    W540 8.8grs 11.0grs 1350 fps 35,600 psi

    150gr JHP (No stated brand)
    WSF 6.5grs 8.1grs 1310 fps 35,600 psi
    W231 6.0grs 7.0grs 1210 fps 35,600 psi
    WST 5.5grs 7.0grs 1190 fps 34,000 psi
    WSL 5.5grs 6.3grs 1210 fps 35,600 psi
    W571 9.5grs 11.4grs 1330 fps 35,600 psi
    W540 8.5grs 10.6grs 1330 fps 35,600 psi

    The loads with W231 and WSF are still listed with the exact same components on the current Winchester loading guide on their website. The rest are all gone...

    There was also data for a 190gr JHP bullet, which Winchester had made on special order for a large federal LE agency, but that bullet was never released to the public so I didn't copy the data to here.
     


  3. Could you please cut & paste the 190g data? Sierra makes a JFP Match bullet in 190g that I like to use.
     
  4. MakeMineA10mm

    MakeMineA10mm * * * * Millennium Member Lifetime Member

    1,955
    5
    Feb 13, 1999
    Central Illinois
    Sure. It's actually an FMJ bullet, so the data should be directly applicable. Seating depth of this bullet is 1.260"

    190gr FMJ (Winchester)
    WSF 5.5grs 7.1grs 1120 fps 5” 35,600 psi
    W231 4.6grs 5.9grs 1030 fps 5” 35,600 psi
    W540 7.5grs 9.5grs 1170 fps 5” 35,600 psi
    W571 8.5grs 10.0grs 1140 fps 5” 35,600 psi
    WSF 5.5grs 7.1grs 1120 fps 5” 35,600 psi
    WSL 4.5grs 5.7grs 1040 fps 5” 35,600 psi
    W231 4.6grs 5.9grs 1030 fps 5” 35,600 psi
    W296 DNR 12.6grs 0970 fps 5” 22,200 psi
    WST 4.5grs 0850 fps 5” 26,700 psi

    I have a total of about 50 loads for 190gr bullets. I'll try to PM them to you.
     
  5. freakshow10mm

    freakshow10mm 10mm Advocate

    180gr bullet with 6.5gr WSF is one ragged hole at 25y.
     
  6. old wanderer

    old wanderer

    238
    0
    Dec 22, 2008
    I have to say reading through all this just tears my heart out. About a year and a half ago I was moving from So Cal to Washington...I could only haul so much in my PU and the moving company did not even want to move ammo or brass..

    There in the trash was 7# of 571, 5# of 540, 6# of 231. I only move the large keg of 473AA as I used to shoot it in my 45 acp as well as shotgun....Who would have though all the shelves would be empty????
     
  7. _The_Shadow

    _The_Shadow Ret. Fireman

    4,520
    21
    Jul 23, 2007
    Southeast, LoUiSiAna
    Man, You should have called, I might have drove over to get it!

    U-Haul trailer!
     
  8. MinervaDoe

    MinervaDoe

    9,407
    1,686
    Jan 26, 2009
    San Jose, CA
  9. Disinformant

    Disinformant

    6
    0
    Jun 26, 2009
    For my birthday i took my wife shooting. I made some light weight low recoil rounds to teach her on. g20 with 22# spring
    6 grs, 6.5 grs w231 135 nosler jhp started out using the stock spring to make sure it would function. IT functioned perfectly for me my not so for my wife. Also functioned without failure with 22lb spring for myself. I found the 6.5gr loads more accurate for myself.

    She started out not hitting the paper @ 20 feet( literally only 7 out of first 40 she fired hit paper), by the time we were done she put them all in 9-8 ring. So I consider it a success.
     
  10. MikeS.

    MikeS.

    72
    0
    Mar 25, 2009
    Great thread, thanks guys. I'm new to reloading, started in April. I haven't loaded for 10mm yet but will starting next week. I have a Mech Tech CCU in 10mm on order. So I'm looking for some good 10mm loads to try in it.
     
  11. MSgt Dotson

    MSgt Dotson

    3,268
    8
    Sep 30, 2006
    That guess (a rther big one) is a full grain over Hogdon's current max....
     
  12. Alycon

    Alycon

    19
    0
    Jul 26, 2009
    I know your post is kinda old, but I'm desperate. I have a few pounds of Winchester 571 and no load data. Can you help me with some load data?
     
  13. MakeMineA10mm

    MakeMineA10mm * * * * Millennium Member Lifetime Member

    1,955
    5
    Feb 13, 1999
    Central Illinois
    Hodgdon and Winchester recently admitted that several Hodgdon and Winchester powders are identical powders, packaged and marketed separately. Win 571 is one of those. It is the same as HS-7, a very well thought-of 10mm powder. You can use any data you find for HS-7 for your Win571, and there's a ton of that data over in the Hodgdon powders thread.
     
  14. Alycon

    Alycon

    19
    0
    Jul 26, 2009
    I know this thread is old, but do you have any data on loading 9mm. I have a few pounds of this powder left, but lost the data book.
     
  15. Alycon

    Alycon

    19
    0
    Jul 26, 2009
    Thanks for the info. I found the web site, but HS-7 and Winchester 571 data were not included. I'm reloading 9mm FMJ and possibly 45 ACP, but can't find any data for any of these powders. Any help on these calibers is appreciated.

    Alex
     
  16. BuffaloBo

    BuffaloBo

    278
    0
    Jun 22, 2004
    Wow, it's been a while since I posted here.

    Noticed, as perhaps some of you have that Winchester came out with a new offering, namely AutoComp.

    Anyone try it yet? Seems like it would be similar to WSF. It supposedly produces more gas for comped guns.

    Looked at some load data, and it doesn't appear to be too efficient/economical.

    Any thoughts?
     
  17. BuffaloBo

    BuffaloBo

    278
    0
    Jun 22, 2004
    Worked out very well, as evidenced by my reporting back with results. Gotta remember that as time goes on, loading data gets wimpier and lawyers more bolder.


    I also load 40 S&W. My empirical experience has shown that there is a good relationship between loading 10's and 40's. I had developed a load for 40 using anywhere from 4.6 to 4.8 gr W231. No pressure signs, and it burns clean.

    I've done load development for almost ten years and have noticed that there typically is about a 2gr difference between 40's and 10mm. Be advised, it is not a hard and fast rule by any means.

    So, when I successfully developed the above mentioned 40 load, it seemed very reasonable for me to make that 2gr upward adjustment.

    Very similar comparisons in loading were seen using Blue Dot, Longshot, WSF, and Unique. --- All very close to a 2gr difference.
     
  18. WRXcelration

    WRXcelration

    428
    2
    Sep 29, 2008
    DC Metro Area
    I know this is old but I thought I'd post my load for you in case you need it

    Using 124g FMJ
    4.2gr W231
    OAL 1.155 (+/-) .005

    Shoots in everything from my PF9 to my G19 and even my Kimber 9mm
     
  19. WRXcelration

    WRXcelration

    428
    2
    Sep 29, 2008
    DC Metro Area
    Glad I found this. I just picked up a 29sf this weekend and was looking for w231 loads. Great info. Thanks guys