Don't forget the Whitworth, hexagonal bored rifle.
That's right, no lands or grooves, a hexagonal bore.
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Sir Joseph Whitworth, one of the premier inventors and firearms designers of his era, manufactured his singular rifle in Manchester, England. It fired a unique, hard metal, hexagonal-sided bullet with a very long aspect ratio (.445 inches by 1.45 inches, or 2½ times its diameter) that gave it superior ballistic performance at extended ranges. In order to give his long bullet the same 530-grain weight as that of the Enfield, Sir Joseph reduced the caliber to .451. Seventy to eight-five grains of British-manufactured powder launched the bullet at twelve hundred to fourteen hundred feet per second, considerably faster than the Enfield. While the Whitworth's light weight meant that while a soldier could easily carry it around the battlefield, he could count on it giving him a heavy kick when he pulled the trigger. Overall, the Enfield made a better all-purpose infantry weapon, and equaled the Whitworth's accuracy to five hundred yards.
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The rifle was available with and without bayonet attachments and came with a 36-inch or a 33-inch barrel, which made for an overall length of 49 to 52½ inches. All had a hexagonal bore and a fast 1:20 twist. "Typical 'Confederate Whitworths' featured a 33-inch barrel, two Enfield pattern barrel bands, iron mounts of the military target rifle pattern, and Enfield-type lock with no safety bolt and an Enfield-style hammer; open sights, with a blade front being adjustable for windage allowance, and a stock which extends to within a short distance of the muzzle, giving the rifle a snub-nosed appearance."
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Sighting arrangements varied also. Some Whitworths had Enfield-type sights graduated to twelve hundred yards, and others had a sophisticated sliding blade sight with a vernier screw adjustment for windage; some had simple front sights, and others boasted an adjustable post-and-globe front sight. A few rifles sported a four-power telescopic sight, fitted in an adjustable mount on the gun's left side. While it was a state-of-the-art system in 1864 it did have its drawbacks. "After a fight those who used them had black eyes," remembered one sharpshooter, "as the end of the tube rested against the eye while taking aim, and the 'kick,' being pretty hard, bruised the eye."
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Most of the men in the Army of Northern Virginia's sharpshooter battalions used Enfields, and only one or two men per battalion carried Whitworths. Thus in the approximately thirty-six infantry brigades of the Army of Northern Virginia, there were most likely between thirty-six and seventy-two of these rifles in service. Although some claims of its accuracy are no doubt exaggerated, the fact remains that the Whitworth could and did strike at a thousand yards and beyond. "The claim of 'fatal results at 1,500 yards,'" concluded one modern expert, "was no foolish boast." Overall, it was a deadly weapon that, in the right hands, repaid its high cost many times over. "I do not believe a harder-shooting, harder-kicking, longer-range gun was ever made than the Whitworth rifle," asserted sharpshooter veteran Isaac Shannon. (courtesy West Point Museum)[/FONT]