From that list I would have to pick the 320 REAL. The bear I hunt in VA and TN run around the 300lb range and that would be min of what I would use. I bear hunt w/a 300g XTP MAG. The 300g Nosler is an even better option as Sabotloader mentioned. I might use a 460 Bullshop this year though. I've kinda taken to this big chunks of lead shootin' Bear are a lot tougher than deer. As someone else mentioned, I wouldn't try to shoot through the shoulder if possible.