These lighter Renaissance pieces eventually led to the development of the 3-pounder and 4-pounder regimental guns of the 17th century as well as the leather cannon , notably in the army of Gustavus Adolphus .
These lighter Renaissance pieces led to the development of the 3-pounder and 4-pounder regimental guns of the 17th century , notably in the army of Gustavus Adolphus .