Shooting 5.56 in a .223: Understanding the Risks and Considerations
Understanding the Cartridge Differences: .223 Remington and 5.56x45mm NATO Dimensional and Pressure Differences At first glance, the .223 Remington and 5.56x45mm NATO rounds appear remarkably similar. They share the same bullet diameter, and both are designed for semi-automatic rifles. However, beneath the surface, subtle but critical differences exist that can significantly impact performance and safety. … Read more