I shot a very large male wolf on Babine lake ice in the winter of 1965.
Most of those who saw it immediately said it was one of the largest wolves they had ever seen.
Since it was the dead of winter, the carcass soon froze solid, and I eventually gave it to a trapper who also commented on it's size.
He later told me it weighed 152 lbs. [Which was heavier than I was in those days!!]
It was very large, and I cannot say I have seen a larger one except possibly in pictures.
They do get big, occasionally, but a 200 pound wolf would be a very unusual animal.
Regards, Eagleye.