Report addressed to the Hon. Jefferson Davis, secretary of war, on the effects of firing with heavy ordnance from casement embrasures: and also the effects of firing against the same embrasures with various kinds of missiles: in the years 1852, '53, '54, and '55, at West Point, in the state of New York (1857)
http://www.archive.org/details/reportaddressed00tottgoog
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On the physical conditions involved in the construction of artillery: with an investigation of the relative and absolute values of the materials principally employed, and of some hitherto unexplained causes of the destruction of cannon in service (1856)
http://www.archive.org/details/cu31924030759777
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A short acount of an improved cannon : and of the machinery and processes employed in its manufacture (1856)
http://www.archive.org/details/shortacountofimp00trea
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Granted, all a few years before the War, but all apply in some way to the guns used during the War.
Enjoy!