First introduced in 1955 for the Winchester Model 70 bolt-action and Model 88 lever-action sporting rifles, the .243 Winchester (6×52mm) quickly gained popularity among sportsmen worldwide. For its time, it was a ground-breaking. This was due to the round being lightweight, making it great for long-range performance but still offered the stopping power suitable for game up to the size of deer and pronghorn antelope. We have .243 Winchester ammo in-stock and ready to ship today at discount prices from top brands like Fiocchi Ammunition, Barnes Bullets, Sellier & Bellot, Nosler Bullets, Federal Cartridge, Winchester Ammo, Black Hills Ammunition, HSM Ammo, Hornady, and Remington Ammo. Buy some .243 Winchester today using our quick and painless one page checkout!