This thread will be pic heavy,so try to hold on before replying.
Savage rifles are like adult lego systems,if you have the correct tools,anyone with any mechanical ability can change out the calibers in a matter of minutes in their shop/gun room.
I have a Savage 12 FLV in 308,that's always been a great gun,but just never shot as good as my 10 FCP in 308.I got in on a group buy on some E.R. Shaw varmint contour barrels in 6.5mm and 7mm calibers.
While these barrels aren't my first choice in an aftermarket barrel,for the price,I couldn't pass up the deal
I ordered a 7mm-08,and a 6.5 Creedmoor barrel to swap out on this action.
Now it has taken forever to get the 7mm-08 barrel,I ordered these back in March 2012,and the 6.5 barrel is suppose to arrive in another month or so.
Onto the swap,First check the weapon and make sure it is unloaded,and remove the bolt.
Since the rifle has a Weaver rail and optics on it,they need to be removed.
You can see why the rail and optics need to be removed,the rail overhangs the barrel nut,and unless you want to modify the Barrel Nut Wrench,you can't get the nut loose.
With everything off the action,you can take the action/barrel out of the stock.
I always wrap the receiver with electrical tape to keep it from getting scratched/marred from the Action Wrench