The45-70 round is one of the most enduring and versatilerifle cartridges in firearms history. Originally developed in 1873 for theSpringfield Model 1873 Trapdoor rifle, thisbig-bore round has evolved from a blackpowder https://4570round141152.my21blog.com/106656/the-45-70-round-a-timeless-legend-in-modern-ammunition