I have seen discussion elsewhere about Pyrodex loosing its power after a few years and deteriorating. Picked up an OLD green cardbord can with metal ends and a metal push in cap a couple of years ago. I am guessing this was some of the first stuff out. Got out my Ruger Old Army that I have not shot yet and loaded it up with the old stuff. Went bang consistently and with a lot of kick when I filled the cylinders with 50 grains. I could find no fault with it. Any one else had a bad experience with the older Pyrodex?