Is there an airgun (handgun ) with 2-3J of energy? Preferably pellet.

Just sold my Kp-13 as it was somewhat lackluster. Was only somewhat accurate in the 10-15m range. It was 1J so im guessing 2-3J would extent this range up to 30m? Also im not sure how pellets compare to 6mm 0.25g plastic BB's.