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Recent content by garryd

L & R
muzzle loading side side shotguns
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  1. G

    Optimum Round Ball Caliber

    if you fired a .40", .45", .50", .52", .56", .58", and .62" ball at the same velocity, would they not have the same trajectory? But they do not have the same ballistic coefficient. They have different sectional densities. The ballistic sectional density is different from sectional density as...
  2. G

    An Interesting Book on the use of ML's in North America

    John Palliser explored the Canadian west as leader of a surveying expedition. He wrote SOLITARY RAMBLES AND ADVENTURES OF A HUNTER IN THE PRAIRIES. It was published in 1853. In it, he relates information on his guns and their use in the expedition. This book can be found on-line at various...
  3. G

    Is excess powder really blown out?

    Spike, would you be willing to share the chronograph data? Would like to know calibre, powder granulation, grains of powder, barrel length, weight of bullet and velocity. Intend is to correlate average barrel pressure to velocity. Thanks.
  4. G

    Barrel blank

    4140 Steel is a heat-treatable steel and the ultimate strength, yield strength, ductility, hardness, and impact toughness are all dependent upon the heat treatment and can vary greatly based upon that heat treatment. The specifications for 4140 steel, like those for other steels, specify minimum...
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