I don't expect the gun to work; it seems to me that if Voldemort had a ritual to give people properties of magical creatures, he would have given them to himself, and firing a gun at a troll three times would not be terribly effective. But would his body recreated from his blood through this ritual have those features? Uncertain. But shooting a troll three times would still give you enough time to close the distance, or cast a spell on him before he could fly away, or so on.
[edit] As people pointed out below, I forgot about the temporary nature of the spell without the stone.
It is also interesting that the horcrux spell can be cast for others (or is he doing other mind magic at the same time?).
I suspect that Hermione goes first, because that's how you test that this is a safe idea: you do something 'nice'. I dispute the use of others as guinea pigs as actually being nice, though. Even when there are positives to them.
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 111.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: