Nosler still lists the 10mm 200gr and 304 in stock. $44.90/250 is a great price for them too.
http://shop.nosler.com/nosler-bullet...let-250ct.html
Nosler specifies a pure lead core and a tapered jacket. I dont think the XTP is a pure lead but im really not sure.
BTW the Nosler 45Colt 250gr is a decent sabotless "range fun" bullet for 45cals too. They resize really easy.