Canada's two main railways notched another record-setting quarter for grain shipments.

Canadian National and Canadian Pacific say they are benefiting from strong global demand, a bumper crop, efficient cars and more capacity due to smaller hauls of other products amid the COVID-19 pandemic.

CN says it moved 7.7 million tonnes of grain in the third-quarter and 2.81 million in September alone -- both new records for the time periods.

CP also reported moving 7.7 million tonnes in the quarter that ended Wednesday -- 11 per cent more than its previous third-quarter record.

Canadian grain remains in high demand as shippers try to feed a growing appetite from mills and governments seeking to shore up staple reserves amid the pandemic.