Sorry guys, but we're having two different discussions here. TS spoke about bending the barrel in order to change the sight line. The other discussion that was introduced later, is bending a barrel back into it's original position. Two different things!
Just to make sure you guys understand what I'm saying, the first is - regardless of what some might say - a no-go in my book. That is my personal and professional opinion. Either way, both should be a no-go for people who don't know what they are doing. If a professional gun smith with the right tools and experience is willing to do this procedure for you, I'd say go for it if it works for you. But in general, this should NEVER be done by someone who is not experienced and who doesn't have the right tools for the job for obvious reasons.
I'm not trolling here, I'm just trying to send a word of warning, because this might cause serious damage to your barrel if done wrong.
Moving away from this discussion from this point on, just wanted to correct and clarify some stuff here.
[Edit=typo]