The only ammo i trust. - Hornady Critical Defense .45 ACP 185 Grain Flex Tip eXpanding Centerfire Pistol Ammunition

Your search stops here. Great expansion, without over penetration. I use Critical Defense in all my handguns. Well worth the cost. There is no bigger mistake you can make than selecting a high-quality firearm and a high-end holster, and the loading it with the cheapest range ammo you can find.