I agree with Skeeter 7mm for the most part if the rub were higher etc... then that might tell somewhat about the deer. I would not use the rub as a fact that the deer is bigger though. I' ve seen some 4 pointers rub the crap out of a tree you would of thought a 12 point had been there. Depending on how many other deer are around, and on how pumped up they are is how big there rub will be.