The Canadian Navy used a different gun and system to haul the gun and limber. There were two ramps, and a block and tackle system that the sailors used to slide across the rope to the other side.
The Gun was modeled after a British 6pdr rather than modeled after a Royal Navy 4.7 Inch Naval Gun. It had no rear carriage.
Both that and the Naval Ladder display were staples of the Royal International Nova Scotia Tattoo for two decades before the Gun Run and the Ladder display stopped.