Thread: Hand prime or Bench prime

I wouldn't get too worried about the old primer contamination chestnut. Unless your pores are absolutely ouzing gunk and the rounds intend to be loaded for zillions of years it just isn't an issue. The priming compund is sealed with a lacquer like substance. I avoid touching the ends (more from a safety point of view) but that about it. I have tried to kill primers by soaking them in oil and water and the oiled ones go off next day whilst the wet ones generally are subdued. Hard critters to kill.