All rifles are switch barrels... It's market BS to have something field swappable in my opinion. No matter what, you are going to want to double check zero. I was obsessed over switch barrel stuff a few years back till I figured out- they are all switch barrels. You want an action manufacturer that hold tight tolerances, this opens the door to action unseen barrels. Bighorn and Impact are your huckleberry(s) here.
Take your barrel vise - torque it down to the barrel goodntite. Take a hammer and smack one side of the vise to unthread the barrel. Righty tighty torques it shut. You can faf around with the action wrench and your overseas torque wrench that likely isn't calibrated, but a smack or two (make sure to anti sieze your threads) requires an average of 70-150 ft lbs of force to remove it. Here I made a video for you.