The 300 Winchester Magnum is a long action belted magnum introduced in 1963 by Winchester Repeating Arms. It is a necked down, shortened, and slightly blown out cartridge based on the parent 375 H&H.  The 300 Win Mag has always been considered one of the great hunting cartridges, and with the current selection of bullets, better suited for long-range shooting, it has come … [Read more...]