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Winchester Powder Data

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

  1. Meathead9


    Aug 23, 2009
    The PRK
    So there I was, loading 45, minding my own business when it hit me. I had just crimped the 200th round of 45 @ 5.3gr W231. With (10) 180gr JHP's that had been homeless for months, and the uniflow set at 5.3gr, I loaded them up. It ended up being a nice, soft shooting, accurate little bunny fart load. This load also cycled my 24# spring just fine, the brass dropped right at my feet. Normally I'm not a big fan of these kinds of loads, but this one may grow on me...

    Sea Level, 65* F
    6" LWD Barrel
    Wolff 24# Spring
    1.26 OAL
    Winchester 231
    CCI300 Primers
    Starline Brass

    Ave: 948
    ES: 17
  2. Bello

    Bello America/Italia

    Sep 24, 2008
    East Coast
    Anyone have any new updated info on wsf powder?

  3. gofly

    gofly pistoleer

    Feb 29, 2012
    Tried the WSF. It didn’t get the performance of the others, but it was remarkably consistent, night and day to BD on both.

    180 fmj, cci 300, 1.260, full turn Lee fcd. She smiled in a stock 20 at 8.6gn, 1160 fps, 25es, 5 shots, 1 smile. At 8.2gn I got 1110 fps 18es, 5 shots
  4. Taterhead

    Taterhead Counting Beans

    Dec 13, 2008
    Boise, Idaho
    Not a lot of you guys get too excited about exploring the other end of the G20 performance envelope, but I have been recently playing around with soft shooting stuff.

    I think I might have found loads that would be great gamer loads for those inclined to shoot 10mm. This is still a ways above minimum PF for IDPA SSP, but much softer shooting than what I normally run. The top load below makes major PF. All of the below rounds cycled my G20 flawlessly and grouped very well @ 15 yard. The first load was a tad more dirty than the others.

    Powerbond 180 FP
    Winchester Super Field (WSF)
    CCI 300
    Mixed brass (mostly Starline)
    1.25" COL
    Temp: 60F

    8 shot strings

    5.7 grains:
    Average velocity: 860
    H/L Spread: 72
    PF: 155

    5.9 grains:
    Average velocity: 890
    H/L Spread: 52
    PF: 160

    6.1 grains:
    Average velocity: 918
    H/L Spread: 64
    PF: 165

    6.2 grains:
    Average velocity: 928
    H/L Spread: 51
    PF: 167

    WSF meters quite well. Thanks to Freakshow10mm for helpful insight about WSF. I'm going to set the Uniflow at 6.1 grains. That seemed to be about the sweet spot.
    Last edited: Mar 3, 2013
  5. nickE10mm

    nickE10mm F.S.F.O.S.

    Apr 13, 2004
    Wichita, KS
    Thanks for the post, Taterhead...

    I've always been interested in great loads for target/plinking/hunting/gaming for the 10mm... And actually, they were out of my normal HP38/W231 last time I went for powder so I got a pound of WSF, too.

    I use 6.5gr WSF under a 180gr pill and its quite accurate. Unsure if it or HP38 is more accurate but I very much like both powders.
  6. Taterhead

    Taterhead Counting Beans

    Dec 13, 2008
    Boise, Idaho
    Hi Nick.

    Curious, what are your velocities with 6.5 grains?

    I have been curious to see how slow I can get and still cycle the stock G20 with 17 pound spring.
  7. nickE10mm

    nickE10mm F.S.F.O.S.

    Apr 13, 2004
    Wichita, KS
    Jack, I've got no idea on the velocity. Haven't had a check to chrony any of my 231/WSF loads yet. I'll post here when I do. I'm guessing velocity at 1000fps+ from my 6" Fusion
  8. gofastman


    Jan 29, 2010
    if you want LIGHT loads, try WST under a 200gr bullet
  9. SDGlock23

    SDGlock23 Glockoholic

    Ran some handloads through the new G20 Gen4, and here is my Winchester data.

    Glock 20 Gen4 (stock)
    80 degrees outside, 1000 ft elevation.
    1x PMC brass, CCI LP primers. Velocities are averages.

    180gr PD FMJ, 7.0gr WSF @ 1.250": 1,092 fps (11 fps ES! 6 fps SD)

    180gr PD FMJ, 7.8gr AutoComp @ 1.250": 1,176 fps (51 fps ES)

    200gr Rainier RNFP, 6.2gr WSF @ 1.250": 987 fps (31 fps ES)

    200gr Rainier RNFP, 7.0gr Auto Comp @ 1.250": 1,088 fps (22 fps ES!)

    More or less my goal was to get a plinking 10mm round that isn't full powered yet is still more than typical .40 level loads. My target was a 180gr between 1100-1150 fps and a 200gr between 1050-1100 fps. I succeeded!
    Last edited: Jun 29, 2013
  10. SDGlock23

    SDGlock23 Glockoholic

    Gen4 Glock 20 10mm (stock gun, 1x PMC brass, WIN LP primers):

    180gr Z-cast, 7.0gr WSF @ 1.260": 1,141 fps (16 fps ES)

    Nice load and accurate too from the stock G20. Some leading so I wouldn't advise shooting hundreds without a cleaning in between, but not the worst leading I've seen either.
  11. SDGlock23

    SDGlock23 Glockoholic

    Glock 20 Gen4 bone stock. Around 75-80 degrees out and humid.

    200gr Missouri Steeler, 7.0gr AutoComp @ 1.250" (1x PMC, Win LP): 1,147 fps (14 fps ES)

    Nicely consistent but a fairly smokey too.
  12. AJE

    AJE Grumpy Old Man

    Apr 5, 2004
    SW Ohio
    I've got 5lbs of WST to use, and I was hoping to find a good mild load to put me just over the "major" threshold for USPSA in 10mm. I've got mostly 165fmj and a few hundred 135gr.

    I found this data (apparently in an old manual)

    And the following from

    Looks like it's probably from the manual too.

    Posted partially for my own notekeeping. I hope to get started on this soon!
  13. SDGlock23

    SDGlock23 Glockoholic

    Through the Gen4 Glock 20 (stock)

    A chilly 20 degrees outside, but sunny.

    (1x PMC, FED LP) 180gr PD FMJ, 5.2gr WST @ 1.250": 874 fps avg (19 fps ES)

    (1x PMC, FED LP) 180gr PD FMJ, 5.5gr WST @ 1.250": 966 fps avg (10 fps ES)
    Last edited: Nov 25, 2013
  14. AJE

    AJE Grumpy Old Man

    Apr 5, 2004
    SW Ohio
    Thanks for posting SD.
  15. Taterhead

    Taterhead Counting Beans

    Dec 13, 2008
    Boise, Idaho
    I continue to be amazed with the versatility of the big G20. On the top end, I've seen 850 lb/ft of average muzzle energy. Now on the other end of the spectrum, a new low of 250 lb/ft. No modifications. Box stock gun. I can't think of another gun that can cover such a broad spectrum of ammo right out of the box. Kudos to Glock.

    The load data is:

    Bullet: Leatherhead 180 gr RNFP Hi-Tek coated cast bullet
    Powder: Winchester 452AA (now obsolete, superseded by WST).
    Primer: CCI 300
    1.25" COL
    Mixed Cases

    Velocities below are averages

    5.0 gr 790 fps; 10.1 std dev; 142 pf; ME 250 ft/lb
    5.2 gr 831 fps; 8.1 std dev; 150 pf; ME 276 ft/lb
    5.4 gr 864 fps; 7.6 std dev; 156 pf; ME 298 ft/lb

    All cycled fine and grouped extremely well. This was a stupidly soft shooting load. I'm going to experiment some more and this will make it into the IDPA rotation.

    WST load data is said to be VERY close to 452AA, so this data should have some crossover relevance to WST .
  16. Taterhead

    Taterhead Counting Beans

    Dec 13, 2008
    Boise, Idaho
    A bit more data from the land of "how slow can it go?"

    This time with a 200 grain Precision Delta FMJ. All cycled perfectly in the Gen 3 G20. Stock RSA and barrel, and set some new personal "best lows" for PF and ME in the G20. I worked this up based loosely on old Win WST data. (452AA was replaced by WST, and have similar burn properties).

    Mixed cases (mostly Starline)
    CCI 300s
    Winchester 452AA (1970s era)

    4.3 gr
    ave velocity: 669
    ME: 198 (yes, folks, a 10mm energy calculation that starts with a "1")
    PF: 134

    Brass for this round dropped right near my feet. That tells me it is barely cycling. But it did cycle, and groups were very good.

    4.5 gr

    ave velocity: 695
    ME: 215
    PF: 139

    This will be the round that I'll take to the next IDPA match. This is a ridiculously soft recoiling round. Brass ejected a bit farther, but still close. Probably a bit more margin for positive cycling. Groups were very good.

    4.7 gr

    ave velocity: 722
    ME: 231
    PF: 144

    Good function. Good groups. This would be a serviceable too.

    For a lot of you this is probably yaaawwwwwwnnnnn data. I get it. I have spent a bunch of time plying the upper end of 10mm velocities. We know that this is very versatile cartridge, but I've been interested in the full range of capabilities: low and high. Plus I inherited a hefty supply of 452AA, and I've been looking for excuses to burn it up.

    This will likely be where I stop on the low end though. The ME range out if my G20 has been 198 to 866. I'm not sure of another auto-loading service cartridge that will cover that much territory!

    A note about the bullet. Unlike many of the 180 gr FMJs that I've measured from Precision Delta, the 200s were sized at 0.400 on the nose. The 180s have tended to be slightly undersized, so these seemed to noticeably group better than the 180s.
    Last edited: Sep 6, 2015
    nickE10mm likes this.
  17. JoleBole

    JoleBole Mr.Glock

    Mar 14, 2009
    Hello everyone. I made some 10mm loads using Win AutoComp. Test gun was G29 Gen4. Here are the numbers:

    Powder Charge: 7.2gn
    Bullet: Berrys Plated 165gn FP
    Avg velocity: 934fps

    Powder Charge: 7.6gn
    Bullet: Berrys Plated 165gn FP
    Avg velocity: 1006fps

    Powder Charge: 8.0gn
    Bullet: Berrys Plated 165gn FP
    Avg velocity: 1052ps

    Powder Charge: 7.2gn
    Bullet: Hornady FMJ 180gn FP
    Avg velocity: 1015fps

    Powder Charge: 7.6gn
    Bullet: Hornady FMJ 180gn FP
    Avg velocity: 1052fps

    Good powder for plinking. No flash at all.
    Taterhead and _The_Shadow like this.