According to some embodiments, a railcar comprises: an underframe comprising a center sill extending longitudinally along a centerline of the railcar; a hopper coupled to the underframe and comprising a discharge opening; and a discharge assembly coupled to the hopper. The discharge assembly comprises: a sloped side sheet, and a discharge gate frame in a plane offset from horizontal and extending from a bottom of the sloped side sheet to proximate the center sill. The discharge gate frame at least partially surrounds the discharge opening. The discharge assembly further comprises a discharge gate coupled to the discharge gate frame. The discharge gate is operable to move from a closed position that restricts a lading from discharging to an open position that permits the lading to discharge. Moving from the closed position to the open position comprises moving at an angle upward and transverse to the railcar.