Looks like a core seating and point forming die set on that really big auction web-site. Here is the link if you're game: http://www.ebay.com.au/itm/200908772...84.m1436.l2649
Looks like the seller has measured one of the punches at .1705" so I'm assuming he's got a .172 flat base die. I'd grab it but there is just no real demand for .172 projectiles at the moment. Not sure how you'd go sourcing a .172 core swage die to suit at the moment either, but you might get lucky?