The World's Longest Serving Military Cartridge
The 7.62x54R cartridge, developed in 1891, remains the world's longest-serving military round. Despite its rimmed design posing feeding challenges, its longevity is due to massive stockpiles and continued use in platforms like the PKM and SVD. The video covers its history, rifle variants from Mosin-Nagant to modern DMRs, ammunition types, and crucial maintenance regarding corrosive primers.









