I managed to talk Al Nelson at NOE into making some Lyman Slug Moulds . They are on the website and I would urge anyone who is interested in getting either a 2 or 4 cavity mould to act fast as there is a limited number of each one.
here's a link directly to the burb on the mould.
http://noebulletmolds.com/NV/product...juuk3j3e7jf6h4
These have a hollow base even though the pic on the site doesn't show it and should drop at 525 gr with pure lead. or around 500 with WW material. Moulds are aluminum and absolutely beautiful.
$109 for 2 cav and $139 for 4 cav.
Great deal.
Randy