Don't carry a pistol of any kind, antique or not. Any law enforcement can make your life hell.
For some reason, people are under the impression that Police Officers are familiar with all of the regulations within the Criminal Code of Canada.
Some are very well informed on specific issues, not usually firearms related.
They tend to run on "common sense" most of the time, but some are a bit off the wall in their approach to just about everything, thankfully they are the "odd" ones.
I was reported, about a decade back, while shooting at floating bits of wood floating down a creek.
It was crown land and there weren't any free mining claims on this section. It was also close to 20 kilometers back in. Lots of logging roads and old clear cuts but not an area that saw much use or traffic.
A hunter had called the Conservation Office to report that he had seen me shooting a handgun in the area.
He must have seen me unload, take the pistol out of the locked container, load and shoot. I never did see him.
The COs showed up about an hour and a half after I started shooting.
There were two of them, which is unusual.
I put the Webly No1 down on the ground and stepped back.
They were both very nervous and one was MAD.
I showed them the paperwork and neither of them had even heard of the loophole. It took less than twenty minutes over their communications to get things settled. I wasn't hunting, which is illegal in BC, with a handgun of any type. The angry one, stayed angry, while the other was more interested in the revolver than looking to lay charges.
I had another altercation about five years back, that took a couple of hours to sort out, because a female rookie kept insisting that I had to be breaking some law, shooting a handgun, off an approved range, on private land.
She almost rolled her pick up racing across an alfalfa field to get to where a few friends and I were shooting. One owned the property.
She kept it under control enough to call for another officer to come to the scene, when I showed her the documentation.
Again, it all worked out OK and the OIC of the detachment actually asked if he could shoot one of the antique revolvers. He loved it and I believe he purchased one a while later.
It's the luck of the draw how these things work out.
Losing your cool is going to get you nothing but trouble. Then again, people being people, in or out of uniform, can make some negative decisions and it goes on from there.