non-corrosive ammo + moisture = corrosion?

[Tactical_Tom]

I was talking to a guy who is convinced that if you store a gun for a while without cleaning it the un-burnt powder in the barrel will collect moisture and cause corrosion. Is this a really possible because it seems to make some sense but I have left gun for a few month without cleaning and it didn't seem to have any effect on accuracy whatsoever.

 

[Big Z]

No problems here..though I'm in a dry area.

 

[turbo54]

I was talking to a guy who is convinced that if you store a gun for a while without cleaning it the un-burnt powder in the barrel will collect moisture and cause corrosion. Is this a really possible because it seems to make some sense but I have left gun for a few month without cleaning and it didn't seem to have any effect on accuracy whatsoever.

Yes, this is absolutely possible, and quite common...PARTICULARLY with non-stainless barrels.