Pistol and revolver shooting are very popular recreational and competitive disciplines in Canada.
Pierre De Coubertin, the creator of the modern Olympics Games, was a pistol shooter, and pistol events have been present at every summer Olympic Games since the birth of the modern Olympic movement (1896).
For more detailed information you can go to the Wikipedia page on Shooting Sports.
Here are some examples of the wide range of competition events utilizing handguns:
These events fall under the rules of the ISSF.