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Winchester WST Loads for .38 special?


Dang It Dan 13202

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Well boys and girls, due to the component shortage I am faced with the prospect of using some powder I have had since Obama was in office.  I have a new 8# container of Winchester WST.  I don't even remember why I bought it, but waste not, want not.  Does anyone one know if this is suitable for .38 special?  I am not looking for specific data for obvious reasons but if someone could PM me with something like a starting charge, that would be great.

 

Thanks,

 

Dang It Dan

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Twist:1:18.750"
Primer:Winchester SP, Small Pistol
Barrel Length:7.700"
Trim Length:1.145"
BULLET WEIGHT
140 GR. HDY COWBOY
MANUFACTURER
Winchester
POWDER
WST
BULLET DIAM.
0.358"
C.O.L.
1.450"
  STARTING LOADS   MAXIMUM LOADS   GRS. VEL. (FT/S) PRESSURE   GRS. VEL. (FT/S) PRESSURE     3.5 825 12,600 PSI   3.9 903 15,900 PSI  
BULLET WEIGHT
148 GR. HDY LHBWC
MANUFACTURER
Winchester
POWDER
WST
BULLET DIAM.
0.358"
C.O.L.
1.160"
  STARTING LOADS   MAXIMUM LOADS   GRS. VEL. (FT/S) PRESSURE   GRS. VEL. (FT/S) PRESSURE     2.5 680 13,000 PSI   2.8 735 16,000 PSI  
BULLET WEIGHT
158 GR. CAST LSWC
MANUFACTURER
Winchester
POWDER
WST
BULLET DIAM.
0.358"
C.O.L.
1.475"
  STARTING LOADS   MAXIMUM LOADS   GRS. VEL. (FT/S) PRESSURE   GRS. VEL. (FT/S) PRESSURE     3.3 705 12,800 PSI   3.7 770 15,700 PSI  
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Hodgdon web site as data listed.  It's a messy powder.   Great for 12 ga. slugs

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Messy?  It's fine grained and tends to leak out of measures a bit.  But it shoots very clean in cowboy cartridges and 12 gauge shotgun target loads.  And about as accurate as a pistol powder can be. 

 

good luck, GJ

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Nosler lists 3.4 gr. for 780 fps with a 125 jacketed bullet, so 3.2 or so seems pretty good.

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did some testing with WST in Dec, here are the results and the recipe:

 

Created: 12/26/20 02:11 PM
    Description: MCB  0.38
    Notes 1: MCB  0.38 110 TCFP Coated no land 119.0g  Avg
    Notes 2: 1.473oal 3.09 g WST
    Distance to Chrono(FT): 10.00
    Ballistic Coefficient: 1.000
    Bullet Weight(gr): 119.00
    Temp: 68 °F
    BP: 29.95 inHg
    Altitude: 1200.00
    #          FPS  FT-LBS      PF
    22    903      215.50  107.46 
    21    913      220.29  108.65 
    20    917      222.23  109.12 
    19    877      203.26  104.36 
    18    900      214.07  107.10 
    17    911      219.33  108.41 
    16    901      214.54  107.22 
    15    915      221.26  108.89 
    14    926      226.61  110.19 
    13    929      228.08  110.55 
    12    880      204.66  104.72 
    11    871      200.49  103.65 
    10    888      208.40  105.67 
    9    915      221.26  108.89 
    8    917      222.23  109.12 
    7    910      218.85  108.29 
    6    900      214.07  107.10 
    5    932      229.56  110.91 
    4    918      222.71  109.24 
    3    929      228.08  110.55 
    2    924      225.63  109.96 
    1    869      199.57  103.41 
    Average: 906.6 FPS
    SD: 19.1 FPS
    Min: 869 FPS
    Max: 932 FPS
    Spread: 63 FPS

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It is a great powder for Cowboy Action, anywhere in the 3.0 to 3.3 gr should be good for 105, 110, 125, 147, and 158 bullet. It is a great powder just cost a little more than most powders but burns very clean at low velocities, i would highly recommend it for this game.

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5 hours ago, Flyin Shootest said:

3.09 g WST

If you publish your loads for an international audience, you should abbreviate GRAINS with "gr".   An abbreviation of just "g" is grams.  Big difference.

 

You measured powder to the hundredth of grain?   Why, and how - a Mettler balance?

 

good luck, GJ

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