I think DaveH is the closest here, as I have always cut my own deer and a few years back I weighed a couple before I cut them up, then after I weighed all the packaged meat and I was around 40% meat yeild de-boned. I wanted to verify an article that I had read that said on average you should get 40-50% meat yield for a de-boned deer, and they were right on. I think that is correct.

The deer I usually shoot average around 100-120 lbs., but I was fortunate enough to shoot a 170 lb. 8 point saturday, when I finish cutting it up this week I plan on weighing the meat also and will let you know how much I get for yield.