PS those are made up equasions that wont hold water. Means nothing.
(Copied and pasted.)


(The basics of terminal performance, wounding effects and wounding effectiveness are pretty easy for ordinary people to understand, and this creates a conflict of interest for some gun-writers because there really isn't much to write about.

Instead of sticking to simple facts these particular authors would rather delude you with paragraph after paragraph of mystical concepts such as "energy transfer," "neural shock," "Fuller Index," "one-shot stopping power," "Strasbourg Tests," and "street results." Although this stuff makes for interesting and entertaining reading, it's really nothing more than a bunch of sophisticated junk-science they've invented to ensure they have plenty to write about)