Huge for years in the US… I don’t/haven’t hunted big game with my .35 FX Airgun, no doubt it would do the job for smaller game. Defiantly wouldn’t trust it for large deer, Bear or Cougar(sounds like an accident waiting to happen)…
For large game .45 or .50 cal is normally what I’ve seen used. They are hard to find/get in Canada though. Just not a big enough market for importers and also a lot more restrictions up here, like bull pups are banned, also believe the semi auto pcp’s are banned as well.
Still shaking my head at Cougar?!?! With an airgun, that’s not a 50cal! Just dumb, to easy to bury a pellet in muscle or deflect off a shoulder bone.