zacharoo":394nwlrc said:I have found a place that has some old Winchester powders. The are all in good shape and under $10 a pound. If HS6 is the same as Win. 540, and HS7 is the same as Win. 571 . Would HS5 be the same as Win. WSL powder?
Sugar River":2hp9b7mq said:You guys do realize that there is one Ball Powder plant in the US, Olin St Marks.
In other words the difference is packaging and lot to lot variation.
Powder Equivalencies Per Chris Hodgdon:
To get back to the original question, I don't know that WSL has been packaged under a Hodgdon label.
Exactly so. And yet, if you look at "powder burn rate charts" (no two of which agree), you'll find W231 and HP38 listed four to seven slots apart!454PB":12tpbx75 said:FWIW, Hodgdon has said that H-110 & WW296 are the same powder, H-414 and WW 760 are the same powder, and HP-38 and WW231 are the same powder. The only real variation will be lot to lot.
Take a look at the most recent Hodgdon load manuals and you'll see charge weights and velocities for these powders are identical.