One thing that gets lost in these discussions is the size of the target. For example, in PRS the target sizes are from 1-3 MOA. Just because you can adjust the w/e and hit the target, that isn't proof of perfect tracking. It's proof of adequate tracking for the game being played. And that's exactly how it should be. Scopes for PRS also have to be durable as they get bounced and hammered around a lot....that's where the 34MM tubes come into play. Larger tube size can also allow for fitting more robust internals....though not every brand that offers a 34mm tube has bigger internals than their 30mm offerings. Again, it depends on the brand.
Trying to use a scope designed for PRS in the Benchrest world isn't going to work. Just like most scopes designed for Benchrest work aren't going to stand up to being slammed around like a PRS scope. Again, the game played dictates the gear. Common Sense 101.
Do your homework and get gear designed for the way you hunt, shoot or compete.
