[AHI]

There's data using WSF,572 and Herco. For 20 gauge 1200fps target type loads.(7/8) If you want 3/4 ounce. Add Green Dot to the list. If higher velocity is needed add Long shot to the list. I didn't list .20/28. Because it's unobtainable.

 

[AHI]

Several on line suppliers have 572. Midsouth shooters supply for example.

 

[AHI]

Just checked Midsouth has . 1,4,8 pounders of win572. 1,4 pounders of longshot. 1,8 pounders of WSF. in stock.

Smokeless Powder for Sale | Reloading Powders | Midsouth Shooters

Midsouth offers a variety reloading powders in container sizes from 1 pound to 8 pounds. Shop smokeless powder for sale by quantity, type, or brand here.

www.midsouthshooterssupply.com

 

[AHI]

Winchester fsw? Do you mean wsf?

 

[AHI]

It is one of my backup powders. Data available at Hodgdon's site, It's somewhere around 16gr more or less. Depending on other components.

Reloading Data Center

www.hodgdonreloading.com