... The 577 450 Martini Henry was the successor to the 577 Snider round which was originally adopted by the British Army around 1867. The 577 450 bottlenecked the earlier cartridge down so the bullet diameter is around .455 inches, ...Tell me More...

... The 577 Snider round comes from the a period of rapid development in the evolution of the modern brass cartridge. The 577 Snider round originally used a wrapped brass foil casing, although later manufacture utilised drawn cases ...Tell me More...