A vented pressurized gas-powered actuator includes a housing having a central longitudinal axis and an inner surface. At least one vent groove extends from the inner surface in a direction away from the axis. The at least one groove has a first end spaced apart from a first plane extending perpendicular to the axis, and a second end spaced apart from a second plane extending perpendicular to the axis. The groove second end is closer to the second plane than to the first plane.