Reloading metallic cartridges

[Patrick Chadwick]

If you have a micrometer that will measure to less than 0.001", or a metric mike that measures to 1/100 mm, try measuring the diameters of the bullets in the various mixes - pure lead, 3% etc. The diameter should increase very slightly as the tin content increases. This will also have a 2nd order effect on the bullet/bore compatibility. Hensel may have calibrated the mold for a pure lead or a specific tin/lead ration, depending on what you asked for. He certainly did for the mold for my Gibbs muzzle-loader, and wrote that the bullet should be used as cast, and not sized down at all.