You can go to the Montana Fish, Wildlife & Parks Website and decide for yourself. They will post kill stats, success rates, etc. for the last few seasons. Prior to the season, they will post their predictions, etc.
As to 700, I understand from my conversations with the FWP people that 410 might be a better bet. Alot more private land that allows the public to hunt there, etc. I have also noted that the refuge is closed to hunting the last week of the season. So you might want to see if that's still true, etc. E