There are several options for factory carry ammo. a few of the best are the Speer 200gr Gold Dot, Win 200gr Silvertip, Corbon 165gr HP & 200gr DPX, Buffalo Bore 200gr Hardcast Wadcutter, 200gr TAC-XP, 255gr Keith SWC and the 190gr Softcast-HP. Any of the above would be just fine for defensive use. But as I mentioned earlier for range ammo you will be better off reloading, but until you do any of the cowboy ammo would do for range practice. In my 44's I use the Speer Gold Dot's.