The subsection 12(6.1) handguns are a group of firearms for which there is a class of grandfathered owners. They are permitted, with the appropriate authorization to transport, to take those firearms to the range for the purpose of target shooting. Most other prohibited firearms do not go to the range. In the case of the subsection 12(6.1) handguns, the provision is there to allow them to be used for target shooting purposes.
On May 8th, 2018. See this statement in context.