Composition of heads for 12.7mmX44 (Black Powder Cartridge)

by terryh @, Derbyshire, U.K., Sunday, January 27, 2008, 22:03 (4446 days ago)

Hello again,

After 3 months I now have all I need to reload for my 12mm rolling block. I suspect that pure lead would be O.K. to use for the heads; but has anyone any views as to whether a slightly harder mix could be used? I have cast pure lead heads using a Lee 0.515" x 450g mold and will load them into 12.7mm Bertram brass cases using 50/70 dies. I intend to start off with a fairly gentle load and work up to the loads mentioned in other threads on this board.

Are there any views as to what a suitable minimum load should be?

Terry.


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