• Type: Rifled siege gun, 9 rifle grooves
• Rarity: Rare
• Years of Manufacture: 1861-1866
• Tube Composition: Cast Iron
• Bore Diameter: 4.5 inches
• Standard Powder Charge: 3.25 lbs.
• Projectiles: 30 lbs. Hotchkiss or Schenkl Shells
• Tube Length: 133 inches
• Tube Weight: 3,450 lbs.
• Effective Range (at 10°): 3,265 yards
• US Casting Foundries: Fort Pitt Foundary, PA
• Special Notes: Superior to the 20-pdr. Parrott

Sometimes mistakenly called a 4.5-inch Ordnance Rifle or 4.5-inch Rodman Rifle, this large siege and garrison gun actively served in Union Artillery batteries, and had a reputation for being easy to transport. Many commanders considered these guns superior to the 20-pdr. Parrott due to their superior range and accuracy, and because they could move with other artillery pieces without impeding the march of the army.

In the photo below, three rifles of the 1st Connecticut Battery overlook the town of Fredricksburg. These rifles are in their traveling position, with impliments loaded and trails connected to the limbers.