Be careful with the dry lubes and ammo.
Some of the carriers ane not sealant friendly and only a few guns were designed to use lubed ammo, it causes chamber issues from a lack of adhesion.
Use brass cased ammo not steel to begin with.
Nickle plated ammo tends to weather time and the elements better at least for the short term. Long term? Plain brass, just take it out and wipe it with a clean cloth during your maintenance cycle.