I have a pound of Pyrodex P and having sold the Ruger Old Army I would like to use it in my ML rifles. I have a T/C Seneca .45 cal, a NEF in .50 cal. and a T/C Firehawk in 50 cal. Can use the Pyrodex P in a volume for volume load or do I have to back off on it some. Any ideas? I’d rather not just burn it in a pile in the driveway…