Gun barrel rifling

Rifling refers to the helical grooves inside a firearm's barrel that spin a projectile, improving its stability and accuracy. This process, also known as "rifling," is measured in twist rate, which indicates how far the rifling travels to complete one full revolution. A shorter distance or lower ratio means a faster twist, resulting in a higher spin rate and better accuracy.

The ideal twist rate depends on the length, weight, and shape of the projectile. For short, large-diameter projectiles like lead balls, a very low twist rate is needed, whereas long, small-diameter projectiles like 0.223 inch bullets require faster twist rates.

Rifling can either increase (gain or progressive twist) or decrease from breech to muzzle. Increasing twist rates are preferred as they stabilize the projectile better. Extremely long projectiles may require impractically high twist rates and are often stabilized aerodynamically instead.

Overall, rifling plays a crucial role in firearm accuracy by imparting spin to projectiles, ensuring they fly straight and true.

For your requirements, we offer Rifling broaches ranging from 76 mm to 155 mm in both pull and push type operations. Tailored tooling is offered for variable lead broaching.

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