Hollow-base RN for enhanced stability and consistent downrange performance. The CamPro .355 121gr RNHB (Round Nose Hollow Base) is designed for shooters seeking consistent performance and controlled accuracy. Its hollow-base design ensures stable flight and reliable terminal behavior, while full copper plating reduces barrel fouling and enhances longevity. Ideal for target practice or controlled-range shooting, this projectile delivers the precision and quality that CamPro is known for.