Presumably it would be smaller than 0.47%, though. I presume that 0.47% of those would involve regular shotguns, including even hunting shotguns, and rifles that could be used in crimes, but so-called assault-style firearms would represent an even smaller fraction of that 0.47%.
A potential situation has been brought to my attention. When people are facing mental health challenges, we know they can recover. Gun owners are no different. Under the previous rules, when a legal firearm owner was going through a mental health challenge, sometimes they would transfer a firearm to another loved one or a friend who also had a firearms licence. Then, when they got better, they would get that firearm back at a later date.
Under the handgun freeze that has been implemented, it seems like there could be an unintended consequence in that people undergoing mental health challenges would not be able to transfer that firearm to a loved one.