Q: does this work with pepper balls?
A: Yes if they are .50 caliber.
Q: does it take co2?
A: Yes it uses 12 gram co2 cartridges that you have to purchase separately.
Q: Is this the same as the HDR .50
Q: Does this revolver come with the rubber balls?
A: No. Only what is shown in the picture.
Q: What ammo should I use
Q: Is the Umarex T4E TR50 Paintball Revolver Pistol .50 Caliber the 7 or the 11 joules
A: There is no rating on the packaging.