I am recycling the brass from a range and have run into some brass I cannot identify. I have a handfull of cases marked 338WIN and another batch marked 338Federal. Not listed in my Speer/Barnes/Nosler books but they are all 1994 issue. I found reference to the NEW 338 Federal on line and there seems to be some excitement about it. Both cartridge look the same and measure the same so can I sell them both as 338Fed? These are the ones from a necked up 308 case and are definitely NOT 338Winmag. Thanks.