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I dont see how i used the regular formula for kinetic energy converted my units from grains to kilograms and then back to foot pounds from joules what formula did you use now i have to reavaluate all my handloads i was using ke=1/2mv^2

Those loads are truly incredible when you push a 115 grain bullet to 1300 your producing 959 foot pounds which i beleive speaks for the 9's possibilities as a personal defense gun

Foot pounds Back to the top if your numbers on on the nose you have 266.897302 for a 90 grain at 775 and for a 115 at 775 you should be running 341.035442 foot pounds.