Of course. Once cold, the guns MUST stay outside. Kind of hide them, leave them out of sight in the vehicles.
Brought indoors with the warm humidity, the whole thing will condense water, inside the barrel(s) and out.
We bring in all the shotguns in closed cases and let them warm up before they are opened and cleaned.
That is my job after cleaning all birds. They get stripped and cleaned, all fresh lube.
If we have been caught in the rain, all gun cases are opened in the house immediately.
Cases propped open, guns towelled for the time being.
Feed the dogs first. Always. They have no choice. Have a slurp, clean all birds and think about supper.
Find stuff to eat. Have another slurp. Find a bottle of wine for supper. Cook, eat.
Strip the guns and clean/dry them.
I don't need my rifle barrels fouled with anything. Copper, lead or Italian Mixed Herbs.
Scrubbed out with Hoppe's No. 9, and dried, I am good to go again.
HA! 44 sleeps until bird seasons open again! We have about 10 weeks. I get out 15 - 20 times for first Ruffed grouse.
The much bigger Dusky grouse (aka Blue grouse) are up much higher, depends on logging road conditions.
Three species of Ptarmigan up top in the snow until mid Feb. I can't walk well enough on snow shoes any more to go after them.