SIG’s Legion line is precisely made To optimize the platform toward defensive/anti-personnel use. And 9 rounds of 10mm must be ample to take care of whichever trouble you might experience. For all those not by now accustomed to the SIG Sauer Legion number of handguns, here is a quick primer https://gunsandammunation.com/shop/sig-sauer-p220-legion-semi-automatic-pistol/