WSF vs WST powder

[Joe]

Listers,

 

    Am about out of WST which I use for my .45 acp wad pistol. But I do have a large 8 pounder (not quite full) of WSF. I realize it is not as fast burning as WST, but can I use it for my .45 acp? I have been using 4.2 gr. of WST behind my 200 gr. lswc bullets with excellent results. (Chrono about 812 fps) How much would I use with WSF? My guess is about 5.2 gr.? Does that sound dangerous? Can’t find WST anywhere. Thanks for your help.

[Larry Lang]

On 4/27/2013 1:13 PM, Joe wrote:

Listers,

 

    Am about out of WST which I use for my .45 acp wad pistol. But I do have a large 8 pounder (not quite full) of WSF. I realize it is not as fast burning as WST, but can I use it for my .45 acp? I have been using 4.2 gr. of WST behind my 200 gr. lswc bullets with excellent results. (Chrono about 812 fps) How much would I use with WSF? My guess is about 5.2 gr.? Does that sound dangerous? Can’t find WST anywhere. Thanks for your help.

--

The chart shown on http://www.reloadbench.com/burn.html gives you the "relative burn rate" for various powders.
WSF is slow compared to the usual choices...maybe okay for ball loads.
Being safe while being accurate is paramount.
Larry (WA)

[Brian Shiffman]

Here are some WSF loads with 200 gr bullets.  It looks like your starting load of 5.2 would be fine.

 

Bullet Make & Wt. (gr)		Powder Type		Charge (gr)		Muzzle Vel. (fps)		K. E. (ft-lbs)		Barrel Len. (in)
200 Speer		Winchester WSF		6.8M		929		383		5.0
200		Winchester WSF		6.7M		970		418		5.0
200		Winchester WSF		7.1M		970		418		5.0
200		Winchester WSF		7.3M		980		426		5.0
200 Hornady		Winchester WSF		7.7M		1000		444		5.0
M = MAXIMUM

 

 

Brian D. Shiffman

shif...@umn.edu

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[Tom]

On Saturday, April 27, 2013 4:13:26 PM UTC-4, Novak wrote:

Listers,

 

    Am about out of WST which I use for my .45 acp wad pistol. But I do have a large 8 pounder (not quite full) of WSF. I realize it is not as fast burning as WST, but can I use it for my .45 acp? I have been using 4.2 gr. of WST behind my 200 gr. lswc bullets with excellent results. (Chrono about 812 fps) How much would I use with WSF? My guess is about 5.2 gr.? Does that sound dangerous? Can’t find WST anywhere. Thanks for your help.

 

 

Hi Novak,

 

 I have a winchester reloading manual (rev 15) listing WSF at 6.0gr to 6.7gr for a 200gr lead SWC.  For comparison the same manual lists WST at 4.4gr to 5.1gr for the same bullet.  I've tried WSF down to 5.5gr -- 200gr cast -- Sig autoloader -- and found it a little too light to function -- 5.7gr was required for that gun.  Never used it in my wad pistol. 

[John Konneker]

Hodgdon Powder Company  Cartridge Load Recipe Report - 4/28/2013  data.hodgdon.com 45 ACP Load Type:  Pistol Powder:  WSF BW:  200   Cartridge Information Case:  Winchester Barrel Length:  5" Twist:  1:16" Trim Length:  .893" Primer:  Federal 150     45 ACP Cartridge Load Data Starting Loads Maximum Loads Bullet Weight (Gr.) Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure 200 GR. CAST LSWC  WSF  .451"  1.225"  6.0  870  15,200 PSI  6.7  970  19,400 PSI  200 GR. SPR JHP  WSF  .451"  1.155"  6.1  807  12,500 CUP  6.8  929  16,700 CUP  NEVER EXCEED MAXIMUM LOADS Hodgdon Powder Company  Cartridge Load Recipe Report - 4/28/2013  data.hodgdon.com 45 ACP Load Type:  Pistol Powder:  WST BW:  200   Cartridge Information Case:  Winchester Barrel Length:  5" Twist:  1:16" Trim Length:  .893" Primer:  Federal 150     45 ACP Cartridge Load Data Starting Loads Maximum Loads Bullet Weight (Gr.) Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure 200 GR. CAST LSWC  WST  .451"  1.225"  4.4  830  15,400 PSI  5.1  910  19,900 PSI  200 GR. SPR JHP  WST  .451"  1.155"  4.6  789  15,900 CUP  5.1  898  17,500 CUP  NEVER EXCEED MAXIMUM LOADS

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John L. Konneker