Cast Bullet Leading: Pressure vs Velocity vs Hardness – What Really Causes It?

Does velocity or chamber pressure cause leading—or is bullet hardness the real key? In this video, we put cast lead rifle bullets to the test using multiple powders, charges, and three different Brinell hardness levels. The goal: find out what actually causes leading in the bore and how to prevent it. 🔹 Loads tested with different powders & charge weights 🔹 3 different bullet hardness levels compared 🔹 Real range results with accuracy and bore inspection 🔹 Pressure vs velocity vs hardness — which matters most? Whether you’re a handloader, reloader, or just curious about shooting cast bullets, this test will give you practical insights you can use at the bench and on the range. 👉 Don’t forget to like, subscribe, and comment with your own cast bullet experiences! Where to find us: https://www.rgsrestorations.com/ #CastBullets #Reloading #Ballistics #GunTest #BulletHardness EDUCATIONAL & HISTORICAL NOTICE: This video documents the professional restoration and historical study of antique firearms. All activities are performed by a trained professional in a controlled environment following all local and federal laws. This content is intended for documentary and artistic purposes only. We do not provide instructions on the manufacture of firearms or ammunition, nor do we sell or link to the sale of firearms or regulated accessories. Do not attempt to replicate any activities shown.