Thread: Safest Method Of Discharging Unknown Primers?

Ok, if you've oiled the inside of the cases you need to double damn make sure there isn't any oil residue left and I mean double damn make sure. Reason for that is oil traces can do funny things to the coating chemicals used on the powders to retard the burn and slow the rate at which the pressure increases when you pull the trigger, by soaking into the coatings and altering the retardant affect. Also the oil can act as a fuel source in a really hot burn. If the walnut was sticking into the cases in a glug, that's way too much oil residue for my comfort factor...