weak buckshot

During the beta playing with IZH 58/M79/M37 was really fun, i was thinking "finaly a game in wich you can actually kill people at 100meters with buckshot" and i was really happy to see a game that was not like "past 10m your shot vanish".
But now, it seems pretty weak, even at close range, almost point blank, you are not sure to kill people with a shot of izh58 or m79 buckshot shell in the torso.
am i the only one to think that the buckshot are weaker?

weak buckshot