.243 Winchester Ammo

The .243 Winchester is a centerfire rifle cartridge that was introduced by Winchester in 1955. It is based on a necked-down .308 Winchester case, which accommodates a .243 caliber (6mm) bullet. The .243 Winchester was designed as a versatile cartridge suitable for both hunting and target shooting, offering a good balance of power, accuracy, and low recoil.


The .243 Winchester has gained widespread popularity due to its versatility and performance characteristics. It is particularly well-suited for hunting medium-sized game such as deer, antelope, and wild hogs, as well as varmints and predators like coyotes and foxes. The cartridge’s flat trajectory and low recoil also make it an excellent choice for target shooting and long-range competition.

Typical bullet weights for the .243 Winchester range from 55 to 100 grains, with muzzle velocities between 2,900 and 4,000 feet per second, depending on the bullet weight and load. The .243 Winchester is known for its ability to maintain high energy levels at long distances, making it an effective choice for hunting and shooting at extended ranges.

Overall, the .243 Winchester is a popular and versatile cartridge that has found favor among hunters and shooters alike for its combination of power, accuracy, low recoil, and wide range of available bullet types and weights.

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