A quick search so far...
New Brass: $31.98/50 = .64 Unless you were dividing the cost, your deal is way better.
Looks like new rounds can be had for <$30/25 but don't know about shipping.
http://www.rrarms.com/catalog.php?prod=AX2642#
And, if I need sniper backup, Seņor Cheap Bastard quickly becomes... "Would depleted uranium rounds work better? Money is no object guy"