Hello everyone! Been lurking here for a couple of months now, just registered today. I just returned to the shooting sports after being gone for 30 or 35 years! I just this week got my new Lee Loadmaster and am setting it up now. ( you tube vidieos have been a great help ) I use to reload my own shot shells years ago and in going thru some of my ammo cans of old supplies I found a full can of DuPont SR-7625 and a partial can of Red Dot powders. They seem to be still good. I dont see DuPont even listed in any of my new reloading manuals, and who knows if 35 year old Red Dot is the same Red Dot as todays. What would be the best way of dispoal or could any of this be used in the reloading of 9mm, 40sw, or 45acp?