My buddy and I just picked up ten boxes each of Winchester Partitian gold 3" for 12.83 a box and platinums for 11.21 a box. Natchez shooters supply also has the 2.75 golds listed for 11.54 if you buy 10 boxes. Everything else I've seen in gunshops, catalogs and online has platinums around $17 and golds at or slightly above $19. I hate to hoard this to myself so I thought I'd let everyone know.
Matt
