Problem with Starline Brass
Have usually had good luck with Starline brass, but have run into a perplexing problem. Pulled some unused .45 Colt brass out of storage the other day. The brass had been sized and "belled", then put into a plastic baggy until needed. It has been in storage in this manner for probably 2-3 years. When I examined the brass, it appeared to have dark corrosion spots on every casing (see atch photo for examples). I went ahead and tumbled the brass for several hours. It did brighten up the shiny parts of the brass, but the dark spots remained. I'm not really too concerned about using the brass, but this is the first time that I can recall seeing this, especially on unused brass. Anyone else seen this on Starline brass?