That's pretty impressive. Other than ammo marked especially for short barreled guns, It is quite common to see a bullet several hundred fps slower than advertised when fired from a 2" gun. I don't mess with factory ammo much since I reload almost all of my ammo, but from my experience, Buffalo Bore Bullets seem to chronograph closer to the advertised velocity than any other brand out there. It is getting better however and I think it's because more people are getting into self defense and actually researching their weapons and ammo more than ever so the manufacturers are being forced to be more realistic