You use stainless media with the water? Detergent?When I wet tumble cases, it is after resisizing so no issues with the dies. I do not see any issue with carbide dies. One may need to insure proper lubrication with steel dies.
I let the wet tumbler run 4 to 6 hours, but that fits my schedule. The cases may be adequately cleaned in less time.
How wet is wet? The cases are fully immersed in water. Does that give you an idea how wet they are?
I let cases air dry. I spread them out on a towel to dry. I may stir them a bit after eight to twelve hours in case there are some drops of water in the cases. I let them dry for several days and make sure there is no water left inside the cases. I generally resize and clean cases shortly after shooting and store them away for a future loading session.
I do not oven dry them because I do not need to. Some folks do but you want to keep the temp low, I'd say 200 degrees as a max.
You do not want any water left int the cases.
Hop this helps.
Thanks.