Having fired many different brands and types of ammo through various brands and types of firearms I have discovered that every gun has a specific "brand/type" of ammunition that it seems to "prefer". I use the Hornady Critical Defense rounds in my carry gun, but I would recommend that you try both of them and see which one "feels" and "performs" better in your firearm. Besides, this will provide you with plenty of "range time" to get more familiar with your firearm and more accurate in your shooting in general. And in the end a great bullet won't make up for a poor shooter. A bullets Penetration and Expansion won't make a lick of difference if it doesn't hit the target, or if your afraid to fire it.