OK, I'm relatively new here and possess rudimentary searching skills in forums, so I seek your collective help.
I'm looking for powders for both handgun and rifle (bolt and AR) that are stable, present low flash and are temperature insensitive. Long-term storage is also a secondary consideration.
Also, I have a question on primer shelf life. I have read that they are very stable, assuming cool and dry storage. I have several thousand hoarded during the primer panic in the 1980s that I have stored in my basement reloading area. It is cool, but humidity (Michigan) varies. I try to control it with a dehumidifier, but with inconsistent results. Should these be relegated to plinking loads or are they still OK for all uses?
I'm sure this has likely been addressed here before, so hyperlinks to threads are appreciated.