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In page Rifle:

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Over the 19th century, bullet design continued to evolve, the bullets becoming gradually smaller and lighter. By 1910 the standard blunt-nosed bullet had been replaced by the pointed, 'spitzer' bullet, an innovation that increased range and penetration. Cartridge design evolved from simple paper tubes containing black powder and shot, to sealed brass cases with integral primers for ignition, and black powder was replaced by cordite, and then by other nitro-cellulose-based smokeless powder mixtures, propelling bullets to higher velocities than before.[citation needed]