The farthest shot I hooked up on was 770. It was more or less a lucky shot due to the conditions. At the site, the wind started "lifting" the bullets in the afternoon. We were shooting into and around a bowl shaped area, and after the ground warmed, and the wind direction changed, we all noticed that the drops were a lot less than earlier in the day and a little unpredictable. Combined with the gusts, it was getting pretty hard to correct for the wind, so I held off and let a couple fly to judge the windage. On my 5th shot I connected, and the little guy went down pretty hard, even at that range.
If you like your hunting rifle, you can keep your hunting rifle.