Reloading Data Calculator

Calculate powder charge ranges, case _fill percentages, and estimated velocities for handload development. Not a substitute for published load data.

Case Water Capacity

gr H₂O

Bullet Weight

Powder Density

gr/gr H₂O

Start Charge

Max Charge

Charge Step

Tab to move between fields

Load Steps

Est. Start Velocity2,371 fps

Est. Max Velocity2,512 fps

Start Fill %77%

Max Fill %86%

Rounds per Lb Powder161

Est. Cost per Round$0.62

Start Pressure49,200

Max Pressure55,200

How to Use This Calculator

Enter Case Water Capacity, Bullet Weight, and Powder Density.
Set Start Charge, Max Charge, and Charge Step.
Review the Load Steps result.
Use Est. Start Velocity (fps) and Est. Max Velocity (fps) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

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