I started reloading in the 60's, and i've yet to this day, thrown out any gun powder "because it's old!!" If it looks the normal color, and smells like any other gun powder you have, it's still good!!!

I hope you wife doesn't get to thinking about the gas in the lawn mower that's around, or the 20 plus gallons of gas in you car!!! I assure you "that gas" in your car is a thousand times MORE dangerous than any smokeless gun powder you have around!!! Don't believe me???????? Spill a cup of gun powder in your grass and light it!!! Unless it's in a pile, you can't light it!! In a pile, YES it will make some smoke, and sit there and burn. Then do the same with a cup of gas!!!!!! The gas will light "spread out or puddled up"!! It will also explode if conditions are right!

Gun Powder containers are designed to let go if in a fire, so as it burns the gas can't build up pressure and explode. A Gas tank is SEALED these days, read BOMB!!!

Drilling Man