Load Testing: Winchester WSF powder (Part II)

[J Lee]

PD 124 FMJ RN   OAL=1.150"   WSF=5.1gr   Avg velocity=1150

Glad to see someone reporting chrono results faster than mine.  J Lee, the ball is back in your court. 

Forehand into the net.  I'm spent.

I believe it.  I just can't figure out what I'm doing different.

Boris used 5.1gr.  I stopped at 4.8 but still?

[Boris_LA]

I just can't figure out what I'm doing different.

If you've noticed I've also used OAL 1.150". A little shorter than ID. Also smaller .355" bullet.
Its totally different from your 124gr JHP, my SP-01 barrel length is longer too, so you can not compare the results. I have not tested WSF with JHP at all. The only test were with PD 115gr FMJ RN and PD 124gr FMJ RN and i didn't like the results to continue with other bullets.

[Wobbly]

I tested myself with the PD 124 JHP. Confused why my numbers are much lower than yours.  Don't misunderstand, I'm not doubting your numbers. I would just like to learn what I did to get lower velocities. Maybe it's my chrono.

Primers and choice of brass would probably be primary causes. I don't see those listed.

 

[IDescribe]

Wobbly, you're the resident WSF proponent.  Do you have any 124gr jacketed data to offer for context? 

[Boris_LA]

Primers and choice of brass would probably be primary causes. I don't see those listed.

I use the same S&B SPP and sorted WIN and S&B brass for match loads. Mixed brass for practice.
Shorter barrel with slow powder is very likely the reason for slower velocity.

[1SOW]

Until I get a new PC I can't post his data,   but Wobbly posted some of his first loads with WSF a year or two or three (?) back.

[J Lee]

I tested myself with the PD 124 JHP. Confused why my numbers are much lower than yours.  Don't misunderstand, I'm not doubting your numbers. I would just like to learn what I did to get lower velocities. Maybe it's my chrono.

Primers and choice of brass would probably be primary causes. I don't see those listed.

 

I sort brass by Federal, Winchester, Starline, and everything else. This was 2nd loaded Federal brass and Fed 100 primers.

[Wobbly]

Until I get a new PC I can't post his data,  but Wobbly posted some of his first loads with WSF a year or two or three (?) back.

Actually, it was more like 3-4 years ago... We had an extensive thread about WSF which now seems to have disappeared. ?? Luckily, I have my reloading notebook and can reproduce what I recorded back then.

Missouri Bullet Co 125gr Lead SWC @ 1.075" 
(Aug 2015)
4.2gr 1028 fps
4.4gr 1051
4.5gr 1055

Armscore 124gr FMJ RN @ 1.140"
4.4gr  977 fps
4.6gr  985
4.8gr 1021
5.0gr 1059
5.2gr 1080

Berry Mfg 124gr HBRN plated @ 1.140"
(Jan 12, 2014)
4.3gr  993 fps
4.6gr 1025 fps

Berry Mfg 124gr RN plated @ 1.160"
4.7gr 1025 fps
4.8gr 1050
4.9gr 1065
5.0gr 1070

 

[IDescribe]

Okay, although there's no apples to apples, it looks like I'm 30-50 ft/sec over Wobbly's data, as well.  Time to get out the fine-toothed comb.

[painter]

Until I get a new PC I can't post his data,  but Wobbly posted some of his first loads with WSF a year or two or three (?) back.

Actually, it was more like 3-4 years ago... We had an extensive thread about WSF which now seems to have disappeared. ?? Luckily, I have my reloading notebook and can reproduce what I recorded back then.

Missouri Bullet Co 125gr Lead SWC @ 1.075" 
(Aug 2015)
4.2gr 1028 fps
4.4gr 1051
4.5gr 1055

Armscore 124gr FMJ RN @ 1.140"
4.4gr  977 fps
4.6gr  985
4.8gr 1021
5.0gr 1059
5.2gr 1080

Berry Mfg 124gr HBRN plated @ 1.140"
(Jan 12, 2014)
4.3gr  993 fps
4.6gr 1025 fps

Berry Mfg 124gr RN plated @ 1.160"
4.7gr 1025 fps
4.8gr 1050
4.9gr 1065
5.0gr 1070

 

Is this it Mr. W?   http://www.czfirearms.us/index.php?topic=50261.msg303911#msg303911

[1SOW]

Thanks painter.  Good search skills.

[J Lee]

Looking back at my 1st post, forgot to state that the 1041 avg with the PD was with 4.8 gr. so I'm in line with Wobbly's results.

[IDescribe]

Looking back at my 1st post, forgot to state that the 1041 avg with the PD was with 4.8 gr. .

Copemech, his charge weight was 4.8gr.

Yeah, we figured that out. 

[painter]

Thanks painter.  Good search skills.

I wish I could shoot as well.

[Wobbly]

By popular request, I worked up some more strings today...

Powder: WSF
Bullet: Precision Delta 124gr HP
OAL: 1.100"
Primer: Fed #100
Brass: Winchester
Strings: 10 rounds each
Pistol: CZ SP-01 Tacti-cool

4.0gr  920 fps avg
4.2gr  958
4.4gr 1004
4.6gr 1021
4.8gr 1049

SD's ranged from 11 to 13
Temp was 68F
Clear and low humidity