First Off, Newfys are more fun then BCers. Along the Alaska panhandle, on the BC side , guys at work took moose that were over 200# a quarter.That's huge. When he first saw it, he wondered what a sheet of plywood was doing out there. But that was a while back. Moose numbers in BC have dropped.
Rule of thumb says a hindquarter weighs 10% of live weight. No moose ever weighed close to 2000 pounds on a scale. Yukon-Charlie River moose are usually considered the largest and IIRC they peaked under 1800. ADF&G had a tripod and ran to gunshots to get examples to weigh. At least one group of captive moose have also been weighed regularly.