I also don't like rechamberings whether it's a British double in .360 no. 2 (a fine enough cartridge by most accounts and a handsome one), a .350 Rigby converted to .375 H&H or a Webley .455 converted to .45 ACP (probably the worst sin of those mentioned). There's a guy in the US who wants to undo all the .455/.45 ACP conversions. I wish him luck!

I'll admit to having a well used Mauser Type A in 10.75x68 that was converted to .404 Jeffery before I bought it. I'd like to return it to 10.75x68.