|For a cross-game overview of this perk, see Nerves of Steel.|
It increases the regeneration rate of Action Points by 20%.
Compared to Fallout 3, this perk has become more useful, since Grim Reaper's Sprint only recovers 20 Action Points after killing an enemy in V.A.T.S.
patch 188.8.131.522, but made irrelevant due to future patch).[verified]If you don't equip a weapon, this perk will not take effect (PC