I worked fairly closely with St. Marks powder. Who makes WC 844 and H335. They are owned by GD and are based out of Florida.

They provided me with their OEM list of powders and what the canister version is. I’ve played with both versions in equipment that measures pressure, can say from experience it’s the same powder.

With that said I am all for playing it safe and treating a powder as faster burning then it actually is.

There is one important note, powder manufactures will sometimes make special lots of powder, which are an OEM only powder tailored to a specific companies needs. They will often label these powders with the parent powder. So it might be WC 844 Lot: X1234....that is a complete unknown and may be faster burning or slower burning.


Reloading...it’s like knitting for men.