Thanks for the story. I carry the .40 and also have a G23. I've reloaded the .40 quite a bit and with a good barrel like a KKM, I've ran 180gr past 1200 fps and 200gr hardcast (WFN montana bullet works and 200gr wfngc from beartooth) to just over 1150 fps from the G23. I've killed smaller animals with it but nothing as big as that bull and would certainly have no issues using it to hunt deer or pig.