[PapaBear3625]

What about condensation forming on the inside of the plastic bags?

If the ammo is dry, and I pack the ziplock bags in winter when humidity is low, how is moisture going to get inside the ziplock bag to cause condensation?

[Redcitizen]

Add some dessicant packs to the plastic bags to remove any remaining moisture.

Example of where to buy:

https://www.walmart.com/c/kp/desiccant-silica-gel