[quote=BrobyDDark]
No. It has already been proven that if you shoot the Doctor while he's regenerating then he can actually die.
[/quote]

If you're referring to The Impossible Astronaut, then technically that never really was the Doctor - just that robot thing with the tiny people inside disguised as the Doctor. We never actually saw the Doctor get shot while he was regenerating.

So really that's still up for debate.