From my understanding they are just about the same especially if they are both blueprinted/trued.
That said I haven’t handled a bergara that wasnt a smooth action.
The “issue” with bergara actions is the bolt nose. The back of the barrel is dished almost not flat like a standard rem700 or other clones. So that means they don’t take a shouldered prefit only barrel nut/ rebate style prefits.
Now you can order a barrel blank and have a gun smith cut you a shouldered. That’s what I’m having done over the course of this next year. I came upon to b14 rifles at a steal