Quote:
Originally Posted by mtgianni
I don't know about the Ruger. I have cast and loaded ww round balls [patched] successfully for many years in 50 cal BP rifles. Accuracy is typically less than 1/4"-1/2" for a 10 shot group. IMO, if rb seat without shaving lead they should be OK. If the conicals are hollow based I would use pure lead with them. If they are solid and ww allow them to seat without shaving it will not hurt to try.
Many bp cartridge shooters use 1 in 20 or 1 in 30. I don't know what the tin gives to the Brinell Hardness Number but pure is 5 bhn and ww are from 11.5-12.5 bhn. Hard cast are 16-18 bhn, water dropped are 17-19 bhn and lino is around 22 bhn.
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In my experience and confering with the Antimony Manhttp://www.theantimonyman.com/index.htm who lives in my area Tin does not add hardness but allows the lead mixture to flow better by improving fluidability which in turn allows the mold to fill out easier.
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Semper FI
Last edited by Beans; 03-27-2012 at 11:23 AM.
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