I have had a lb of this powder for God only knows how long - 10 years maybe. I recently have loaded .32 Mag, .44 Spec. and .38 Spec. with it. All book loads. This is the dirtiest powder I have ever used. Tons of unburnt powder (mostly in the .38 loads). The loads were all accurate, but I was stunned when I would pull the trigger on the .38 loads and a donut of confetti (unburnt powder) would exit the barrel. I was using CCI SPP standard primers. I had unburnt powder all over everything. I will relegate this to shotshell loading for the future, and stick to Alliant powders.