I inherited my great grandfather's double barrel percussion shotgun and powder horn back in 1968. Family history had been that Great grand Dad had went goose hunting, fired the first barrel while lying down on the ground, and not happy with the recoil, gave it up as a bad job, took the gun home and never fired it again. So, many years later, my Dad and I remembering the family "legend" check the barrels, sure enough the one barrel was still loaded. After some fooling around, we pulled the load out and since we were outside anyway we had to see if the powder was any good. Sure enough, it touched off instantly with a very satisfying cloud of smoke and WHOOSH! I still have the powder horn with powder in it, a couple years ago, I wanted to see if it was any good and I poured a small thimble full of powder out. Of course, it touched off just as quick (as I could tell) as my most recent can of Goex.