This year on several occasions I just could not make out horns on mule deer in the 1000-1500yd range and wished I had something to take a closer look after they were located with binos. I'm no trophy hunter but like to take a mature buck each year. I don't need to see every little sticker at a mile, but knowing that it's a decent buck would be nice.
Remember, these are the conditions that the OP is asking about.
