10-20%?! Wow. And safe to use in a SAA or clone or Toggle link lever action.
As far as cleaning goes, i guess i get a little overly concerned. All these years of cleaning black subs off my 1851 Navy, putting it tge safe for a few months and taking it out with rust and junk on it even though i thought i cleaned it thorough of Cleanshot
Yuppers. totally safe. The entire trick is the "pressure curve" plus "max pressure".
The subs are essentially a "modified gunpowder recipe" that still use charcoal and closely mimick BP's pressure curve.
This is possible since there are no nitro-based components, which make up the bulk of smokeless.
The nitro-based powders ( even or especially the ancient guncotton and other forms of nitrocellulose) conflagrate so rapidly the pressure spike will overstress lesser firearms designs.
so the basic rules with Pyro are
- measure load by volume - same volume as Black Powder.
- since it is less dense than BP you do not need to worry about it.
- clean thoroughly with water ( ie scrub with water, brass brush, patches, more brass brush, more patches.
Soap helps, Vinegar doesn't)
- dry
thoroughly well
- apply oil of choice
-check next day with clean patches. clean again if req'd
- do not use any modern fancy solvents - they do not dissolve the perchlorate salts and often just put a layer of oil over them
so the salts can continue toattack the steel from underneath.
now, just for fun, here is the SDS (safety data sheet) for Pyro and 777 - note that 777 includes Dicyaniamide, so don't go wiffing the fumes - on burning that releases cyanide gas....
Pyro:
https://www.hodgdon.com/wp-content/uploads/2017/06/pyrodex-sds-sheet-2017.pdfTriple-7
https://www.hodgdon.com/wp-content/uploads/2017/07/triple-seven-sds-sheet-2017.pdfyhs
prof marvel