I've killed a few deer on shots well over 30 yards but I don't attempt it anymore. The first was my first deer with a recurve. I missed him at like 12 yards. He ran out to 35 or so and I shot him. Liver hit, and he didn't go far. Looking back on that, man was I arrogant. I missed him at close range and then had the audacity to shoot a hail marry shot at a much longer range?
In Namibia I killed a kudu at 35 yards, but kudu have huge vitals. Wasn't really that hard of a shot. But I also killed a warthog at 32 yards. Warthogs have small vitals. I think that shot at the warthog was the last big game animal I have shot at over 25 yards.