I ran into a guy the other day who was talking about his Taurus Public Defender and got talking about ammo for it. He said that 000 buck was smaller than 00 buck, but that sounded odd since the 000 usually has fewer pellets (implication that they are larger???). Does anyone know the size/caliber of the pellets used in each of these? Thanks in advance! Wanna kill these ads? We can help!