Good afternoon! I have a problem with my Zoraki hp-01 5.5. I recently purchased the light version, a used product, I only managed to chronograph it today, it's weaker than normal and I don't know how to solve it. used pellet, 0.70 grams, 10.80 grains. 1 bomb: 85 mts 2 bombs: 120 mts 3 bombs 129...