Thread: POWER FACTOR
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Old 11-02-2017, 06:37 PM
Steve912 Steve912 is offline
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Quote:
Originally Posted by Kiwi cop View Post
A small history lesson then for those who don't know.

Power factors were developed by Jeff Cooper...

He worked out the PF formula (velocity )750 fps) X bullet weight (230 gn) divided by 1000 which equaled 180) and this earned "major" points <snip>
Game players & gamesmanship--what a surprise!

For the OP, I've found 115/124/147 FM reman, all universally
very soft-shooting stuff.
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