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BuffaloBo
07-22-2004, 13:47
A while ago, another member posted a question regarding why there is no Winchester Data. I replied that Winchester doesn't really offer any serious powders to consider for 10 mm. So yesterday I was preparing for another Chrono session and thought "what the hey" and took out some of my W231 that I use for plinking in other calibers.

Well, I kind of "guestimated" and picked a charge weight.

The components are as follows:

180 Winchester FMJ bullet
Winchester 10mm nickle cases
CCI Standard large pistol primers
6.8 gr W231
Stock G20 except for 22# Wolff recoil spring


The results are as follows in (fps):

1098
1100
1082
1077
1093
1099
1086
1089
1073
1079

Average was 1088 fps
Std Dev 10fps

This is very close to 1100 fps, pretty impressive for a plinking powder. Std Dev is pretty low too. I think the reason why the Std Dev is so low is because W231 "throws" and meters so well.

Primers appeared not to be pushed out or flattened, and case bulge was not extraordinary. I haven't any idea if this is a mid or max charge. It doesn't appear to be a max charge. I feel reasonably comfortable with this load and don't feel compelled to push it farther. W231 burns about as well as any other.

Finally, if the esteemed moderators feel that this thread can be used as a "sticky", then I kindly ask for you guys to consider making it one.


Thanks,


BuffaloBo

Johnny Kitchens
07-22-2004, 19:16
I had wondered about Winchester data myself. I looked until I found an older Winchester loading manual which features loading data for 231, 296, 540, 571, WST,, WSL, WSF and WAP. They used a 5" barrel and a 180gr JHP, with 5.2gr of 231 for 950fps and 29,600psi and 5.8gr of 231 gave 1050fps at 35,600psi. I guess it is good thing not to throw away older printed stuff, like magazines or loading manuals...

grendelbane
07-23-2004, 16:01
For several reasons I thought I needed a 10mm lite a couple of years ago. One reason was an injured hand that did not take kindly to excessive recoil. I loaded 5.6 grains of W-W 231 behind an 180 grain JHP. Success! This was mild, accurate, and reliable.

I never throw away a loading manual. In Winchester's case this is extremely important, as they do like to discontinue powders. Found a can of W-W 540 just the other day.

As the chrono shows, 231 runs out of steam real quick. However, if maximum velocity is not required, it can still be a good choice.

Johnny Kitchens
07-23-2004, 21:18
I'm glad I didn't throw mine away. I bought two cans of 540 at a gun show. One unopenned the other about 3/4 filled. I got both for just $6.00. I was really happy to see it had a use in the 10mm Auto. I also see that 540 and HS-6 are the same powder...

MCNETT
07-23-2004, 23:18
Now we have a Winchester powder sticky!
-Mike

BuffaloBo
08-03-2004, 18:32
Some new data today. Same variables as above EXCEPT 7.0 gr W231 AND 5" KKM barrel.

1167
1158
1157
1159
1128
1163
1160
1159
1140
1166


Avg: 1156
Std Dev: 12


Cases look fine, and so do primers.


C'mon guys , am I the only one brave enough to post Winchester data?
:)

BuffaloBo
08-10-2004, 13:52
I just picked up a # of WSF. Stay tuned for some upcoming Chrono Results! ;f

BuffaloBo
08-11-2004, 21:27
As promised, I have some new data for Winchester WSF.
Same variables as above EXCEPT for the stated powder and 3 samples:

All values are in fps

(7.1 gr WSF)
Avg: 1118
Std Dev: 12
HI: 1139
Lo: 1091


(7.3 gr WSF)
Avg: 1158
Std Dev: 9
Hi: 1176
Lo: 1142

(7.9 gr WSF)
Avg: 1196
Std Dev: 11
Hi: 1214
Lo: 1174


Some observations:
Powder meters very well. All groups were very tight as can be seen by the very low Std Dev's. It does burn a bit on the dirtier side, just likes its cousin 231. Case appearances were normal, and there was no evidence of flattened primers.

I'm not through experimenting with this powder. I do think it is capable of higher numbers. Until next time!





:)

BuffaloBo
08-17-2004, 14:56
A couple of entries today.
Same setup as above.


(8.1 gr WSF)
Avg: 1219
Std Dev: 10
Hi: 1229
Lo: 1204


(8.4 gr WSF)
Avg: 1250
Std Dev: 7
Hi: 1258
Lo: 1239

Some observations:

Cases look fine, as do the primers. I'll try to work up to the 1300 fps mark.
According to the various "burn rate" charts, this powder is just slightly faster than IMR-800x, slightly slower than Power Pistol, and seemly about even with Alliant Herco.

BTW, I've had excellent results using this powder in 9mm, 40 Smith and Wesson, and working up with 357 Sig.

BuffaloBo
08-22-2004, 17:34
Some new data today
Same setup as previous post(s)

10 shot groups

(8.6 gr WSF)
Avg: 1297
Std Dev: 5
Hi: 1304
Lo: 1291


(8.8 gr WSF)
Avg: 1302
Std Dev: 6
Hi: 1308
Lo: 1294


Some observations:

Well, as you can see I've hit the 1300 fps mark. The 8.6 gr sample is the highest I will load from now on. The 8.8 gr sample had a few flattened primers. So, it's a good indication that things are getting too hot. I'm still amazed at how tight the groups are.

I'm going to include some 357 Sig data extracted from using my G20 with the appropriate barrel @ standard length.

124 gr Speer Gold Dot
Speer Cases
CCI standard small pistol primers
(8.4 gr WSF)


Avg: 1420
Std Dev: 14
Hi: 1434
Lo: 1400

Very good numbers here also.

I'm very pleased with this powder. This will be one of my "base" powders.

G-20er
08-27-2004, 20:09
Mike, or any others...

Would you happen to know what one of these powders would work great with the 200gr. XTP?

WSL, Winchester

W-473AA, Winchester

WSF, Winchester

W-540, Winchester

WAP, Winchester
;f

WSF?

BuffaloBo
08-27-2004, 20:51
Most of the powders that you list are obsolete, save WSF.
If you have some remnants, don't get too attached to them;f

spongeman66
08-27-2004, 21:49
From the Ramshot burn rate chart (http://ramshot.com/powders/burnrate.php)
I personally would like to find some 571...
Looks like from your selections:
22. Winchester 231
31. Winchester 473AA
33. Winchester WSL
40. Winchester WAP
42. Winchester 540
44. Winchester WSF
48. IMR 800X
56. Alliant Blue Dot
57. Winchester 571

WSF is the 'slowest' you list, but it is still faster than 800X. I find that the powders between 800X and AA#9 are the best 'horsepower' powders for 10mm.
The great thing is YOU can try them all!!!

Have fun!
Sponge

G-20er
08-29-2004, 09:28
Check out this link in regards to Winchester 571. Sounds like HS7 is nearly the same so if you didn't like how dirty the HS7 burned then the W571 may not impress you much either.

http://www.reloadbench.com/gloss/hhs7.html

Sounds like we have the same goal...which is trying to get these hunting 200gr XTP to break slightly over 1200 fps. The N-105 was probably the best we can get over the counter at stores. The only way we can probably get better powder was if it was in the same burn speed but sprayed or coated with a Nitroglycerol coating.

See info below:

Adding nitroglycerol to the traditional single base powder makes possible in addition to geometry and coating a third controlled variable of ballistic properties: energy content. Vihtavuori calls powders that have nitroglycerol added (maximum 25%) high energy NC-powders, which form N500 series. Geometrically the powders in the N500 series are equal to the N100 series. Although these new powders have a higher energy content, they do not cause greater wear to the gun. This is because the surface of the powder has been treated with an agent designed to reduce barrel wear. N500 series powders work well at different temperatures, even better than the traditional N100 and N300 series. Temperature sensitivity naturally depends very much on the weapon and on the cartridge. The manufacturing technique employed permits a very high bulk density, which in turn makes it possible to use a bigger charge in a certain limited loading volume. Vihtavuori High Energy powders are available in three burning rates:
N540
Burning rate like N140. Especially for the .308 Winchester.

N550
Burning rate like N150. Especially for the .308 Winchester and .30-06 Springfield.

N560
Burning rate like N160. Especially for .270 Winchester and 6.5 x 55 Swedish Mauser.


N550 is the best powder I can find for my rifle. All we need is this process applied to some pistol powder in the burn rates that we use.

BuffaloBo
09-02-2004, 17:49
Some new data today.


Glock 20
5" KKM barrel
CCI Standard LP primers
200 gr Hornady FMJ FP bullets
Winchester WSF powder



(7 shot sample)
8.1 gr WSF
Avg: 1183
Std Dev: 10
Hi: 1194
Lo: 1170


(7 shot sample)
8.4 gr WSF
Avg: 1192
Std Dev: 22
Hi: 1218
Lo: 1153

As usual, excellent numbers with this powder. Cases and primers appeared normal. I'll try to push these numbers higher.

G-20er
09-03-2004, 11:01
BuffaloBo great data and thanks for taking the time to share. Have a question...online I found load data for the WSF Powder but it lists 6.2 grains as max charge for your bullet. That means your 8.4 charge is 35% higher than max. What am I missing? I was always under the impression there was a 10% safety margin above max loads listed but not 35%.

http://www.nationalbullet.com/pdf/winpdfcat.pdf see page 23 for further information

Leads me to believe I can get more out of my reloads as long as I back down 5% after I see smileys on the brass.

Any info would be appreciated, or send a private message if necessary.

Thanks

BuffaloBo
09-04-2004, 16:33
Originally posted by G-20er
BuffaloBo great data and thanks for taking the time to share. Have a question...online I found load data for the WSF Powder but it lists 6.2 grains as max charge for your bullet. That means your 8.4 charge is 35% higher than max. What am I missing? I was always under the impression there was a 10% safety margin above max loads listed but not 35%.

http://www.nationalbullet.com/pdf/winpdfcat.pdf see page 23 for further information

Leads me to believe I can get more out of my reloads as long as I back down 5% after I see smileys on the brass.

Any info would be appreciated, or send a private message if necessary.

Thanks

Thanks, I enjoy doing it. The load data for the 200 gr bullets was built upon what I was doing with the 180 grs.
Before I get too far into it, you may have noticed that most, if not all loading manuals post VERY conservative max charges. It's predominantly due to the potential of unwanted lawsuits from people blowing up guns, hands, eyes, etc..

Out of all the manuals that I've checked out, it appears that Speer 12-13 manuals have the highest numbers, but in fact, are still somewhat low for the potential of most cartriges that they list. Also, from my empirical results I've noticed that some powders are underrated and some are overrated. For example, Blue Dot is overrated and Unique is underrated. So, take everything with a grain salt. When I first started loading I naively thought that because a powder was not listed, it meant that it was not necessarily suited for a particular cartridge/load. The fun that we have as reloaders, is, we can mess around with powders that are not listed in books. As we become more experienced with this craft, we get a feeling of powder types and burning speeds and can make pretty good educated guesses on the potential of powders with particular cartridges.

The 180 gr load was cautiuosly built up with only a very crude method of determining "pressure" signs, i.e. flattening of primers. The fact that I use a KKM barrel with a well supported barrel precludes me from looking for "Glock Smileys". I started by dropping back about 5% of the max load of WSF listed in Speer 12. I compared what I chrono-ed to what Speer 12 said, and found that by dropping 5% gave me just 2fps less than their max. Their test conditions, equipment, enthusiasm, etc, can be radically different from ours.

I then continued to bump up the charge weights slowly and checked what the primers looked like. I settled on 8.6 gr because the next load at 8.8 gr began to flatten the primers.

In building the 200 gr load, I backed off about 6% of my max 180 gr load. The numbers are about what the old Norma 200 gr loads were. I think that there is a little more to be squeezed out with this powder.

As always, be careful with working up loads. If you don't have a chrono, I'd advise that you get one to see the "fruits of your labor". You'd be surprised with the wild discrepancies between what you do and what they post as results.

G-20er
09-05-2004, 00:36
Great info and thanks again. I agree with what your saying; however, I usually put a limit of 10% over max as my personal max charge. Interesting to hear that some powders are over rated, I'll be more careful.
Yes I do have a chrono and I have posted data under the Hodgon section. I was working with LongShot and went approximately 10% over max charge which was around 9 grains for the 200gr XTP. Velocity never went much higher than the 8.2 load but what caught my eye was that the ES and SD were getting lower with the 9gr load. In the past I have always found that each powder has its sweet spot so to speak and it usually occurs when the ES and SD are at their lowest. Then just a little over this is where you do no good and only run into pressure signs. Do you agree?
Take a look at the data listed in that section and let me know what you see. I have studied it for hours. All shots fired didn't have flattened primers and never had 1 smiley. The only markings on my brass which every piece had was a small dent/crease about 1/4 inch below top of brass. The dent is only about 1/8 inch long. I think its from the enternal parts of the gun during retraction of brass.

Reloading is an art and I'm loving it. Thanks for being bold and sharing what most people won't.

tlrbud
01-02-2005, 19:17
Here's a link to the Winchester Reloading Manual. 10mm is on page 26.

www.winchester.com/products/catalog/components/reloadertoc.aspx

Bud

philpot
09-05-2005, 11:42
Man am I glad I came across this thread! I love using W231 but don't always see a load for it in the manuals. It meters more consistantly than the Unique I also use. Thanks for posting this info, also for the Winchester manual link. Phil.

bubllehead
12-09-2006, 20:39
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)

MakeMineA10mm
12-31-2006, 00:44
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.

Megastar 10
01-03-2007, 04:46
Could you please cut & paste the 190g data? Sierra makes a JFP Match bullet in 190g that I like to use.

MakeMineA10mm
01-05-2007, 01:04
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.

freakshow10mm
10-04-2007, 11:03
180gr bullet with 6.5gr WSF is one ragged hole at 25y.

old wanderer
06-20-2009, 17:12
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????

_The_Shadow
06-20-2009, 19:56
Man, You should have called, I might have drove over to get it!

U-Haul trailer!

MinervaDoe
08-02-2009, 14:55
Here's a link to the Winchester Reloading Manual. 10mm is on page 26.

www.winchester.com/products/catalog/components/reloadertoc.aspx (http://www.winchester.com/products/catalog/components/reloadertoc.aspx)

The Hogdon online manual now provides the web support for Winchester.
The link has been updated to the one below:

http://data.hodgdon.com/cartridge_load.asp

Disinformant
09-15-2009, 15:33
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.

MikeS.
09-17-2009, 18:59
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.

MSgt Dotson
09-17-2009, 19:16
A Well, I kind of "guestimated" and picked a charge weight.

The components are as follows:

180 Winchester FMJ bullet
Winchester 10mm nickle cases
CCI Standard large pistol primers
6.8 gr W231Stock G20 except for 22# Wolff recoil spring


That guess (a rther big one) is a full grain over Hogdon's current max....

_The_Shadow
09-17-2009, 19:43
Especially for that fast of POWDER!

Alycon
09-21-2009, 15:55
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?

MakeMineA10mm
09-22-2009, 14:44
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.

Alycon
09-27-2009, 12:45
A while ago, another member posted a question regarding why there is no Winchester Data. I replied that Winchester doesn't really offer any serious powders to consider for 10 mm. So yesterday I was preparing for another Chrono session and thought "what the hey" and took out some of my W231 that I use for plinking in other calibers.

Well, I kind of "guestimated" and picked a charge weight.

The components are as follows:

180 Winchester FMJ bullet
Winchester 10mm nickle cases
CCI Standard large pistol primers
6.8 gr W231
Stock G20 except for 22# Wolff recoil spring


The results are as follows in (fps):

1098
1100
1082
1077
1093
1099
1086
1089
1073
1079

Average was 1088 fps
Std Dev 10fps

This is very close to 1100 fps, pretty impressive for a plinking powder. Std Dev is pretty low too. I think the reason why the Std Dev is so low is because W231 "throws" and meters so well.

Primers appeared not to be pushed out or flattened, and case bulge was not extraordinary. I haven't any idea if this is a mid or max charge. It doesn't appear to be a max charge. I feel reasonably comfortable with this load and don't feel compelled to push it farther. W231 burns about as well as any other.

Finally, if the esteemed moderators feel that this thread can be used as a "sticky", then I kindly ask for you guys to consider making it one.


Thanks,


BuffaloBo
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.

Alycon
09-27-2009, 13:04
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

BuffaloBo
12-01-2009, 08:58
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?

BuffaloBo
12-01-2009, 09:21
That guess (a rther big one) is a full grain over Hogdon's current max....

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.

WRXcelration
04-05-2010, 21:20
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.

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

WRXcelration
04-25-2010, 18:45
Glad I found this. I just picked up a 29sf this weekend and was looking for w231 loads. Great info. Thanks guys

Meathead9
11-15-2010, 15:17
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

5.3gr
953
956
944
941
942
945
952
940
953
957
Ave: 948
ES: 17

Bello
06-02-2012, 11:49
Anyone have any new updated info on wsf powder?

gofly
06-05-2012, 17:10
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

Taterhead
03-02-2013, 23:12
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.

nickE10mm
03-02-2013, 23:16
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.

Taterhead
03-02-2013, 23:25
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.

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.

nickE10mm
03-02-2013, 23:27
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.

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

gofastman
03-03-2013, 11:44
if you want LIGHT loads, try WST under a 200gr bullet

SDGlock23
06-29-2013, 15:24
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!

SDGlock23
08-18-2013, 12:28
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.

SDGlock23
09-01-2013, 14:29
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.

AJE
11-20-2013, 17:28
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)


WST -----------------------------MAX FPS
150gr JHP 5.5 to 7.0 34,000 1190
155gr JHP 5.0 to 8.0 31,900 1220
170gr lead 5.0 32,100 1020
170gr JHP 4.5 to 5.5 29,500 1020
180gr JHP 5.0 to 5.5 35,200 1010
190gr FMJ 4.5 26,700 850
200gr lead 3.8 to 5.0 32,400 940
200gr FMJ 4.6 35,600 890

Data reproduced from 14th edition Winchester Reloading Manual
Usual reloading precautions and disclaimers apply

And the following from handloads.com

150gr JHP 7.0 gr WST 1,190 fps Winchester
Suggested starting load: 6.3 gr
Pressure: 34,000 PSI


155gr JHP 8.0 gr WST 1,220 fps Winchester
Suggested starting load: 7.2 gr
Pressure: 31,900 PSI

170gr JHP 5.5 gr WST 1,020 fps Winchester
Suggested starting load: 5.0 gr
Pressure: 29,500 PSI

180gr JHP 5.5 gr WST 1,010 fps Winchester
Suggested starting load: 5.0 gr
Pressure: 35,200 PSI


200gr Lead 5.0 gr WST 940 fps Winchester
Suggested starting load: 4.5 gr
Pressure: 32,400 PSI


Looks like it's probably from the manual too.

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

SDGlock23
11-25-2013, 07:39
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)

AJE
11-26-2013, 11:57
Thanks for posting SD.