I reload when and where I can, at home, on road, in van, etc. I usually have to set up my press every time which is slightly bothersome setting the seating depth and swapping dies, it's just what I'm dealing with now as I'm just getting started. My question is one of theory I guess... Sometimes it's easy for me to load my charges into brass then seat them the following day or within 2 days tops. Is there any reason that leaving the brass open without seating a bullet could degrade my powder? I have in the past wrapped my little ammo box with charged brass with plastic wrap. Probably a dumb question but it's a concern.