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Old 02-09-2006, 10:24 AM
Ruken Ruken is offline
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Join Date: May 2003
Location: DC
Posts: 5,949
Originally Posted by yoyodyne
You can get osmium or iridium BBs at $31 and $16 per gram. Gold is currently about $18 per gram, and is easily available and workable. Tungsten is cheaper but unworkable. You can get it as small pellets or as fishing weights though. Tungsten used in shotgun shells is an alloy that is designed to bring it to near the same density as lead.
Iridium is rather inert; I'd go with that. Does anyone know if osmium metal will oxidize in air? The stinky tetroxide is some nasty stuff.