shooting speed with a Colt 45

[nighteagle]

the fact: an average semiauto pistol cycles in approx.
0.015 seconds (15 hundreths of a second) when in skilled hands: all you have to do is press the trigger, the next
cartridge is fed by the mechanism.

QUESTION : when you fan a single action , like the Colt 45
that Monco uses, how fast can be the next shot be fired?
In other words: what is the minimal possible  time elapsed  between two shots?(in skilled hands)

1. 0.5 seconds
2. 0.3 seconds
3. 0.2 seconds
4. 0.15 seconds  

[nighteagle]

I wrongly wrote 0.015 instead of 0.15  at the beginning of my guess game. 0.15 is correct