I have the Shield 40 and love it, but not sure on the carry ammo to use. I like light and fast, so have been carrying the 155 Gold Dots. However, I chrono tested them and they are around 1080fps for my 3.1" barrel. That's only 389 ft-lbs. My 3" Kahr in 9mm gets over 400ft-lbs with +P+. Sometimes...