[If you need 145 rounds for a handgun, you have the wrong job and / or the wrong firearm as 145 rounds is for something that’s belt-fed.]
He fired 33 rounds, hit the perp with 17 of those .45 hollowpoints, including multiple mortal wounds. The gunfight lasted under 1 minute, during which the perp fired 21 rounds at him, and hit him with 1 bullet. It ended only when one of his bullets hit the perp in the head. He was 4 rounds from slidelock, and having to switch to his single digit capacity compact backup gun when the perp stopped firing. When the paramedics arrived, the perp was still showing vital signs, despite having taken a hit in the brainpan. Because both were maneuvering to get out of the line of fire, he was unable to get to his shotgun and AR, and the perp was unable to get to the SKS he had stashed on his back seat.