Gunsmithing student?
I have several switchbarrel rifles and it is very easy and feasible.
Real easy to switchbarrel any pushfeed. Rem 700 can be headspaced by using the recoil lug. Model 70 or Mauser crf might need the extractor cut-out timed.
Not like you have to torque the hell out of a switchbarrel. Even hand tight will work.
The ultimate rig will have a standard and magnum bolt(s). Sako and Winchester 70 bolts are machined very uniformly. Usually no problems to address when swapping. Hard to find push feed extractors these days though. Easy bolt to swap with the mid-safety FP removal feature. Lots of ways to configure one receiver as many rifles.
Lots of options. Lots of hardly used barrels out there that might be reamed to a larger case diameter, or buy blanks. Nice to own a Brownells action wrench and a barrel vise to handle initial removal chores. Amazing how some of the factory barrels were attached with seemingly tons of torque. And then there's the press-fit barrel rifles like from Steyr. If you love Steyr, just thread the receiver and you're in business.