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
The ritual only works permanently because he has the stone. He likely would have later transfered troll power to himself but I don't think he has the time at the moment.
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: