The Snider Rifle, Muzzle Loader; Cal. 577; 5 grooves, one turn in 4 feet.
The Whitworth Rifle, Muzzle Loader. Polygonal or hexagonal form of bore. Rifling, one turn in 20 inches. Bore, 564 across the flats. 568 across center of flats.
The Jacobs Rifle, Muzzle Loader; 4 grooves; loads and grooves equal. Rifling four-fifths turn in 24 inches.
The Turner Rifle, Muzzle Loader. Bore, 568. Rifling Turner’s Patent, one turn in 4 feet.
The Rigby Rifle, Muzzle loader. Rifling 6 grooves; one turn in 4 feet.
The Boucher Rifle, Muzzle Loader. Bore hexagon with angles, rounded off so as to form shallow grooves, 608 deep in center. Bore, 570. Rifling one turn in 3 feet 3 inches.
The Prussian Needle Gun, Breech Loader. Rifling 4 grooves, one turn in 40 inches.
The Chassepot Rifle, Breech Loader; Cal. 433; rifling 4 grooves, turning from left to right, one turn in 21½ inches.
The Snider Enfield, Breech Loader. Rifling 3 grooves slightly deeper at breech than at the muzzle, one turn in 78 inches. Diameter, 577. Depth of rifling at muzzle, 05. At breech, .13. Width of grooves three-sixteenths inch.