Is black powder and pyrodex still good after 34 years?

[Mr.Kenny]

Going through my stuff i happen to find some old pyrodex and black powder my Dad bought in the early 1970's.
Is this stuff any good or is it really unstable?
How do i dispose of it? Sprinkle on the lawn or chat driveway?

[Medmech]

I don't think it becomes unstable but I always play it safe when it comes to BP, I empty it into a bucket of water.

[KarTek]

Where's the fun in that?

[Carleton Hughes]

Originally Posted by Mr.Kenny

Going through my stuff i happen to find some old pyrodex and black powder my Dad bought in the early 1970's.
Is this stuff any good or is it really unstable?
How do i dispose of it? Sprinkle on the lawn or chat driveway?

I know nothing of Pyrodex but a barrel of Dupont FFG black powder from 1908 or so still serves me when I shoot.