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Old 04-03-2018, 05:51 PM   #42 (permalink)
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Join Date: Aug 2006

Brass and Wood Fan
Originally Posted by spece108 View Post
Mar hated his STEM classes. Lol. ~361 fps. (~21.9 rods per sec)

3 ap. drams = 11.66 grams = ~ 180 grs or over 9 times our original weight. With only 11 joules to act on it and a .08 ballistic coefficient for a 50 cal round ball, it's going about the speed of smell.

If however Mar just quick keyed what I think he meant, 1/3 an apothecary dram, for he is a genius and did that perfectly off the top of his head. However, ballistic calculators seldom go under 500 fps. At 361 fps, ~150 yards at a 45 launch is a fair guess so right around 3/4 a furlong.

MCB - home for smart asses.
haha thanks! My father and bother are both mathematicians... it skipped me... so will the 7.5 joule marker shoot 50 cal balls at close to legal speeds?
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