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).
Handgun
Major - 165
Minor - 125
Rifle
Major - 320
Minor - 150
Minimum of 120 in all divisions
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
All divisions Minor - 125
Major by Division
Open - 160
Standard - 170
Classic - 170
Revolver - 170
Production - 125 Minimum (No Major)
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.