Sorry, but I don't have any loads with the 85 grain Nosler BT. My .257 Roberts is a deer rifle, so I load either 100 grain or 115-120 grain bullets. Both 100 grain (Hornady) and the heavier bullets work well, but I would not go below 100 for good performance on deer. The 100 grain provide a 'dead right there' and complete pass through. The heavier bullets work just as well or better.