I used a chainsaw on an elk once, long story, but it was a lot harder to cut through the meat than you think. I thought it would be easy, but in fact I could go much faster with a regular saw and knife. The blade gets filled with meat and it just stops cutting after the first inch or so, in real life it doesn’t work like the movies at all.
Well, not much ever does work like the movies, but having watched a landscaping crew or two take down stands of small trees, it seemed feasible. Was your elk skinned?