ShinSung 202s new velocities

I see Pyramid Air has changed the velocity specs on the 202s. It now reads : ” Dual power levels (low power=700 fpsFeet per second, w/58-gr. pellet; high power=900 fpsFeet per second, w/58-gr pellet .”
With a 200 fps spread between low and high powers seems to be better numbers. My question is what kind of a 9mm pellets weighs in at 58 grains ? I though a .350 round ball weighs in at 65 gr. ?