Greetings all.

As we all know, black powder is very corrosive. Is it corrosive because it is hygroscopic, causing metal to rust or is there some other property (along with being hygroscopic?) that makes BP corrosive?

Here in Arizona it is not very humid-obviously.I wonder if black powder'scorrosive effect of attracting moisture is lessened here (due toless humidity)than say the swampsof Florida?

Not trying to get out of cleaning my MLs as soon as possible after shooting them, I just don't want to worry that I am not cleaning them soon enough. If that makes any sense.

~Robert