Quote Originally Posted by simgre View Post
Around 10 years ago I had an email exchange with one of the chemists who worked for Hodgdon in the development of 777, when I asked questions about inert fillers, varying of loads, duplex and the like. It is not a substitute in the way that Pyrodex is, which can be used exactly like BP. 777 is a "substitute" in very specific conditions and that is when utilised with the exact load data as produced. It was originally designed to give more velocity from in-line, 209 ignition muzzle loaders. It develops 15 to 20% energy for the same volume. The warnings listed around 777 are many.

.45 cal, 50 grain pellets are for use in in-line M/L rifles. The pistol pellets were 30 grain. They .45/30s were dropped sometime ago.

Never cleaned nitro with water? You've never shot milsurp with corrosive primers and cordite sticks. Boiling water was the only way to clean.

Fact is, dick around with 777 loads, deviating away from the published recipes, then disaster may very well come calling. It seems that people have migrated to 777 without understanding what the propellant is really for and have find som based purely on the aspect that cold running water is all that's needed to clean up. It's not suitable in cap and ball revolvers when you're looking to experiment.
Special privileged information from the insider at Hodgons which they do not publish - wonder why?

Duplex loads - you're on your own there - I value my limbs too much

So Hodgons published information is not correct, you know better.

Cite some properly documented disasters with 777 - not "bloke down the pub said...".

Corrosive primers produce water soluble by products, Nitrocellulose does not. I use modern primers and nc powders and have never needed to use water to clean.

Hopgdons provide loading information for cap and ball firearms, and lots of people use it as such, including revolvers, but you claim it is not suitable? You know something that they do not? Wow, you must be a genius!