Never had any luck getting a factory barrel off with a tikka wrench. Get a standard 700
Wrench and turn it so the flat is on the bottom of the action and get a breaker bar to go over the handle.
Based on the discussion from the Semi-Custom Tikka thread, I want to offer up my tools that I'm no longer using to others to remove their factory barrels and install new ones. Here's what I've got and the cost to replace: Wheeler Action Wrench #1 - $80 PMA Gen II Barrel Vise - $87 Bugholes...