Thread: Case capacity effects on velocity

For the same charge the lightest case will have the greatest capacity and lowest pressure and velocity, but loaded to max the lightest case will take more powder to reach the same pressure and greater velocity due to more volume.
Think of your heavy case as a standard 308 and a light case as a 30-06 max load in the smaller capacity would barely be a starting load in 30-06 and be slower yet have potential to be loaded higher and have more velocity for the same pressure.