Hey Solo. . .I thought briefly about going with the G26 based on the cheaper ammo cost, but I decided to standardize and stick with the .40 cal. . .the G27 can take the G23 magazines too, which makes it easier to practice with. The .40 ammo is a little more expensive, but I like the extra punch it has. . . not taking away from the G26--it's a great defensive weapon that's probably easier to control than the G27.