They’re like my USGA annual dues. They just send me one. I’m from the Pac NWest too and caps block the rain.
I have just never got in the habit of wearing them... maybe I will try. I do wear them out at the range for a tiny bit of protection along with my safety glasses and hearing protection in case I have some type of malfunction. I reload almost all of the cartridges that I use; some of the pistol brass have more than enough space to inadvertantly double charge. I use both a turret and a progressive press and churn out hundreds in a session. I try to keep a close eye on them but stranger things have happened.