The United States Navy adopted the design, and equipped several ships with 8-inch guns of 63 and 55 cwt.
in 1845, and later a 10-inch shell gun of 86 cwt.
Paixhans guns were used on USS Constitution (four Paixhans guns) in 1842, under the command of Foxhall A. Parker, Sr.,
USS Constellation in 1854, and were also installed on the USS Mississippi (10 Paixhans guns), and USS Susquehanna (six Paixhans guns) during Commodore Perry's mission to open Japan in 1853.

The Dahlgren gun was developed by John A. Dahlgren in 1849, with advantages over Paixhans guns:
Paixhans had so far satisfied naval men of the power of shell guns as to obtain their admission on shipboard; but by unduly developing the explosive element, he had sacrificed accuracy and range.... The difference between the system of Paixhans and my own was simply that Paixhans guns were strictly shell guns, and were not designed for shot, nor for great penetration or accuracy at long ranges.
They were, therefore, auxiliary to, or associates of, the shot-guns.
This made a mixed armament, was objectionable as such, and never was adopted to any extent in France... My idea was, to have a gun that should generally throw shells far and accurately, with the capacity to fire solid shot when needed.
Also to compose the whole battery entirely of such guns.

— Admiral John A. Dahlgren.
The United States Navy adopted the design, and equipped several ships with 8-inch guns of 63 and 55 cwt. in 1845, and later a 10-inch shell gun of 86 cwt. Paixhans guns were used on USS Constitution (four Paixhans guns) in 1842, under the command of Foxhall A. Parker, Sr., USS Constellation in 1854, and were also installed on the USS Mississippi (10 Paixhans guns), and USS Susquehanna (six Paixhans guns) during Commodore Perry's mission to open Japan in 1853.
The Dahlgren gun was developed by John A. Dahlgren in 1849, with advantages over Paixhans guns:
Paixhans had so far satisfied naval men of the power of shell guns as to obtain their admission on shipboard; but by unduly developing the explosive element, he had sacrificed accuracy and range.... The difference between the system of Paixhans and my own was simply that Paixhans guns were strictly shell guns, and were not designed for shot, nor for great penetration or accuracy at long ranges. They were, therefore, auxiliary to, or associates of, the shot-guns. This made a mixed armament, was objectionable as such, and never was adopted to any extent in France... My idea was, to have a gun that should generally throw shells far and accurately, with the capacity to fire solid shot when needed. Also to compose the whole battery entirely of such guns.
— Admiral John A. Dahlgren.
Paixhans gun