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Power Factor Calculator


Power Factor Calculator

Power factors required by major shooting organizations. Power factor is calculated by the formula: bullet weight times velocity divided by 1000.

Calculating Ammunition Power Factor

This form will help you calculate the power factor for most types of ammuntion as specified by common shooting organizations. Proper power factor for the caliber and weapon type is required if you plan to compete in any shooting match. All numbers are in feet per second (fps).




USPSA

Handgun

Major - 165

Minor - 125

Rifle

Major - 320

Minor - 150


ICORE

Minimum of 120 in all divisions


IDPA

BUG (Backup Gun) - 95

Stock Revolver - 105

Enhanced revolver - 155

Compact Carry Pistol - 125

Stock Service Pistol- 125

Enhanced Service Pistol - 125

Customer Defensive Pistol - 165

IPSC

All divisions Minor - 125

Major by Division

Open - 160

Standard - 170

Classic - 170

Revolver - 170

Production - 125 Minimum (No Major)


SASS

All Divisions Minor - 60

No velocities below 400 fps allowed

Max velocity for revolvers - 1000

Max velocity for rifles - 1400

Pocket pistols, derringers, and long range rifles are exempt from the power factor and velocity requirements.

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