Nice rifles. Bad camera
I've been thinking of using Pioneer Powder as my wife and son both have sulfa allergies and I've also heard it doesn't require as much lub to keep fowling down. I'm shooting a '73 in .45 that we all share right now
The Holy Black isn't too hard to find around these parts, but Pyrodex is the most common. Messier if you ask me. I got a 1/2 lb FFG left I might still use up though.
Enjoy. Congrats again.