Unfortunately the Timney Triggers Elite Hunter Remington 700 Trigger will not work in a Remington 710.
It is adjustable from 1.5-4lbs.
Unfortunately not. The straight shoe is to long for the trigger guard.
It does come with a bolt release that can be easily removed if not needed on a custom or clone action.
Yes. If you remove pin #1 & #3 that should allow the bolt stop to be removed and replacement the #1 pin as it holds the safety. You should be good to go in the Bergara.
The Timney Triggers Elite Hunter Remington 700 Trigger will work in a Remington 700SPS Tactical in .308.
The standard curved Timney Triggers Elite Hunter Remington 700 Trigger should be closer in design to the X-Mark Trigger.
The Timney Triggers Elite Hunter Remington 700 Trigger will not fit a Remington 770. Unfortunately there is not a Timney Triggers Elite Hunter Trigger for a Remington 770.
The Timney Triggers Elite Hunter Remington 700 Trigger may be compatible because it shares a similar receiver design but I would contact the manufacturer to confirm.
The trigger is set at 3 pounds from the factory.