The Fieldpiece at the Battle of Guilford Courthouse
At the outbreak of the War of Independence, American artillery was an accumulation of guns, mortars, and howitzers of every sort and some thirteen different calibers.
Since the source of importation was cut off, the undeveloped casting industries of the Colonies undertook cannon founding, and by 1775 the foundries of Philadelphia were casting both bronze and iron guns. A number of bronze French guns were brought in later.
The mobile guns employed by the army of General Washington ranged from 3 to 24 pounders, with…