I am looking for some of the above to try shot loads for a .500 Linebaugh. I would like to buy 30 or so from someone so that I don't waste $50.00 at Buffalo Arms for 1000 of the things if it doesn't work.
Thanks for any help.

I've got 1000 or so, drop me an e-mail or PM and I'll send some your way.

The other option would be to pick up some 1/2" brass freeze plugs from an auto parts store, as that's what they are, and why they cost so much more then the other caliber thinner checs.