I did say "I would try".
Sucks it doesn't work, though... What's another way one would get looting V without other mods?
Wasn't talking about you. Without other mods? RotaryCraft adds nothing for manipulating enchantments AFAIK and we know it's not possible with vanilla. But with other mods you might have a disenchanter that lets you get the bedrock sword's enchantments on a book. Although if that was @Demosthenex's idea I don't see the point. You're just trading one mob grinding mechanism for one that's at best situationally better. It can potentially kill all/almost all mobs in one hit, but a killer joe with the bedrock sword could kill everything in a larger area in 2 hits, is probably easier to power, and has a built in xp collection mechanism. Alternatively, an autonomous activator/similar device can attack a smaller area with the sword for free. These methods will also let you take the sword back easily for your own use.