So I bought some brass online that the seller claimed to be once fired. The problem with it is when I got it all but 2 pieces had silver primers. Now I found this odd as I've never seen any Winchester brass with silver primers. They have all had a gold colored primer that's matched the case. Or at least every kind of Winchester ammo I've seen. So did Winchester ammo ever come with silver primers, or has this brass most likely been reloaded already?