I cast in a semi open barn and store my moulds in the house. I got ready to go cast some bullets this morning and couldn't find the mould I wanted. Well, I had forgotten to bring it in and had left one of my favorite (and out of production) moulds in the barn.
I was in Florida on vacation for a week and came back from that to find I had to move my Mother into a nursing home and had a pile of work on my desk so it had been sitting out there for 17 days. Still I wasn't too worried and figured at worst there might be a speck of rust that would come right off.
A dang dirt dauber had taken it upon itself to go in there and lay eggs. They had already hatched out and there were a couple larvae squirming around in the little 25 caliber cavity. There must be some good enzymes or something in that mess cause they had flat done a number on it.
I think I finally have it about cleaned up but I had to resort to lapping it with Flitz and even used a little fine valve grinding compound on the ogive where the worst of it was.