Nope. It was an unopened box of factory Remington 225 grain Core Loct loads. Not sure how old, this century for certain. Looking over the rest of the unfired ammo I find a few small spots of green corrosion on the brass. Wonder if corrosion in the primer pocket would cause it? Never had a primer leak before.
Around 2010-2011 Remington had a bad Batch primers.:
