The only Sawyer weapon that appears to have been produced in more than experimental quantity is a 3.67-inch cast steel rifle. This was the standard bore for a 6-pounder weapon firing round shot, and the weapon is usually referred to as a 6-pounder in period documentation. However, as usual for rifled artillery of this period, the elongated projectiles recovered from the Port Hudson battlefield made for this weapon range from 12 pounds (shell with percussion fuze) to 16 pounds (solid bolt). The 2nd Vermont Battery was armed with six 3.67-inch Sawyer rifles at this battle. Surviving documentation as of 1983 showed that orders for these guns were made in December 1861 (3 guns), May 1864 (6 guns), and November 1864 (6 guns); there may have been other orders. One of these weapons survives in Minneapolis, Minnesota. Experts have noted that the rifling grooves on two surviving Sawyer weapons are 2-3 times as deep as is typical for Civil War weapons. This type of weapon was also used on U.S. Navy gunboats; a January 1865 report by Brigadier General Charles K. Graham, in command of a gunboat flotilla, to Major General E.O.C. Ord states that two of these weapons were on the side-wheeler "Chamberlain" and a mix of four guns each, either 3.67-inch Sawyers or 12-pound howitzers, were on the side-wheel light draft boats "Burnside", "Reno", "Foster", and "Parke".