Load Testing: Winchester WSF powder (Part II)

[J Lee]

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

 

Your velocity for 4.8gr is off by 8fps.

[IDescribe]

You velocity for 4.8gr is off by 8fps.

Clearly, you meant 58 ft/s   

[J Lee]

You velocity for 4.8gr is off by 8fps.

Clearly, you meant 58 ft/s   

I chronoed at 1041 avg and his was 1049.  Not picking. Was just being the smartarst that I am.  Girlfriend reminds me of that often.
Sitting here drinking a few IPAs in anticipation of a possible disappointment tomorrow probably not helping.

[IDescribe]

Not picking. Was just being the smartarst that I am. 

Same here. 

... in anticipation of a possible disappointment tomorrow probably not helping.

Spoiler alert:  Your'e about to run out of beer.

[Wobbly]

Equipment
Caliber:    10mmAuto
Bullets:    RMR 165gr plated RNFP
Brass:      StarLine (new)
Primer:    Winchester Large Pistol WLP
OAL:        1.250"
Pistol:      Dan Wesson 10mm Pointman (5" 1911)
Qty:        8 rounds each, slow fired
Weather:  40F and highly overcast
Chrono:   ProChrono DLX
Powder:   Win WSF  (6.9-7.7gr)
Max Velocity:  1182 fps

Load         Avg Vel            SD
7.0gr            1106              19
7.3               1148              23
7.6               1194              45

NOTES
• Meters great, just like WSF always does
• Note that we are using more weight than 231, but achieving identical Max Vel
• Not an impressive powder in 10mm
• No sense of accuracy over the range