This mod increases critical damage of 1 handed swords, 2 handed swords & bows by a multiple of 4 (x6 for bows) for Skyrim weapons.

Files included:

better-criticals-skyrim (use this file only if you don't have the DLCs installed)

better-criticals-dawnguard (this file only modifies the new dawnguard DLC weapons, you should also use better-criticals-skyrim file with this)

better-criticals-dragonborn (this file only modifies the new dragonborn DLC weapons, you should also use better-criticals-skyrim file with this, and / or the dawnguard file if you have that dlc installed too)