Don't know the answer to that question, as I only have one that like yours, is a Hornet. The .260s are rare everywhere.
Are you sure that the LW is suitable for a switch-barrel rifle? I've never heard of such an animal and would think that such a deal would involve at the very least also changing extractors.
Comments on another recent thread threw a good bit of water on the switch-barrel concept. Unless you have some statutory restriction that limits the number of rifle you possess, it might be better to get your .260 another way. Winchester was recently selling a 6.5 Swede Low Wall that might do the trick.
