Power Factor simply put is a method used in shooting sports to create a level playing field of all participants.
How to calculate Power Factor:
100 gr bullet traveling at 600 fps has a power factor of 60: (100×600)/1000=60.00
77 gr bullet traveling at 800 fps has a power factor of 61.6 (77×800)/1000=61.60
200 gr bullet traveling at 400 fps has a power factor of 80 (200×400)/1000=80.00
Minimum Power Factors:
Minor: less than 165
Major: 165 and above
Custom Defensive Pistol (which is restricted to semi automatics chambered for .45 ACP)and Enhanced Service Revolver division, which have power factors of 165,000
Wiki Page on Power Factor
Hodgdon Reloading Data.
And a shout out to Milsurps.com for adding the Show to their Talk radio section that is in the works. Thank you Badger!
Thanks for the feedback and comments
Rod from Vancouver
My girl’s first 4 shots ever with a pistol. Uberti Cattleman 45 Colt (Single action Revolvers)