Weapon reloading animation speed doesn't change with ReloadSpeedMultiplier?

[closer_ex]

So I followed the tutorials in forum and created mecanim animation for my gun, and it works fine with original stats ( reloading, shooting etc ). But when I increase reloading speed, its animation still plays at its original speed, making it slower than the player anim speed.

Vallina weapons don't have this problem but I can't seem to find how they work -- they don't use AnimatorSet* action to change states, and the prefabs extracted from game assets by AssetStudio don't have an animator attached.

Could somebody please show me some clue?