The "regular" Punch in 9mm has a listed muzzle velocity of 1150 fps from a 4" test barrel.
https://www.federalpremium.com/handg.../11-PD9P1.html
Since the Hellcat Pro has a 3.7" barrel, my guess is it's the exact same ammo in different boxes.
But, the Hellcat ammo is a dollar less for 20 rounds.
https://www.federalpremium.com/handg...1-PD9P1SA.html