Do you guys know if it is legal to use 9x19 ammo for small game? I know most people will say " why would you want to? " I have a Sub2000 that is not getting enough use..

so i was thinking to take it with me next time i go hunting (not as a primary of course) . Just in case if occasional hare passes by while i'm in the tree stand.. The sub2000 is surprisingly accurate, and doesn't make that much noise, so it should do the job.
And if that is doable, do i have to have the mag pinned to 5..?
In Ontario, you may not hunt small game with a firearm/cartridge combination that has muzzle energy greater than 400 foot pounds, or use anything larger than #2 shot, if a big game season is currently open.
You may do so if you also possess the appropriate license/tag for the big game animal in season.
Check your ammunition manufacturer's website. They typically will offer a table showing a particular cartridge's muzzle energy.
Outside of a big game season you may use whatever you like, except in some counties in southern Ontario, you may not use a rifle larger than a .275. Unfortunately a 9mm is larger so you must be aware of this if you intend to use it in southern Ontario. The list of counties can be found in the reg book.
Providing...
- your location permits you to use firearms larger than a .275
- there is no big game season on
or
- there is a big game season on but you possess the appropriate license,
or your load has less than 400 foot pounds of muzzle energy
....then you're set.
In Ontario, it would even be legal to hunt moose with a 9mm. It's a centre-fire cartridge after all. Ontario also has no prohibition against using FMJ ammo, so use whatever you like.
Magazines do not need to be pinned. If they are legal to own and use, you can hunt with them. Currently the only magazine restriction in place for hunting in Ontario is that shotguns be plugged to 2+1.
Hope this was helpful.