Bullet molds by Arsenal Molds (you can order them in any diameter, no extra charge):

453-210 swc flatbase ( H&G 68 copy) by Arsenal
http://arsenalmolds.com/products?product_id=63&limit=99999999999

Heavier weight...
453-230 RF by Arsenal
http://arsenalmolds.com/products?product_id=102&limit=99999999999

Do you have a lubrisizer? If not, reconsider the tumble lube design.

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