rubber band the bolt to the trigger guard/wrap the whole thing in vetwrap or ACE bandage/ tie a string to it. All kinds of options for those special folks that can't handle what a bazillion other folks with the same kinda rifles do...... this stuff is only as hard as you make it.
get in the habit of checking it every once in a while, or keeping your hand on it, instead of being in la-la land with no awareness of what's going on with yer bolt.
these Bergara are NO different than ANY other rifle without a safety that locks the bolt. Continue to suffer that pesky 'no-go' you speak of, or just get a M-70, Kimber, or another brand that locks the bolt.