You are absolutely legally allowed to use a rimfire for bobcat, lynx, wolverine, coyote, squirrels, upland game birds, turkeys...but not migratory
game birds in BC. I use nothing but my .17HMR for turkey hunting in BC, and I've shot five with it so far, it works really well and you don't have to
work so hard calling them in to that 40 yard zone...my furthest kill was 160 yards. There is no magazine restriction on rimfires for hunting, but you
probably would be wise to be seen by a CO using the ten round mags standard with the Ruger 10/22 and Remington 597, and not the 25/30 rounders.
If you're using a .22 for turkey, I'd use nothing but 40 grain CCI Velocitors and make 80-90 yards your max range, which still doubles your reach as
compared to a 12 gauge. With my .17HMR, I use 20 grain Hornady ammo(most consistent and powerful by test), and I limit myself to a max range
of 160 yards. Usually you'll see your turkey at well under 100 yards and with both the .22 and .17 you'll be in range, where the shotgun hunter is
still working to call the bird within range. Maple Sugar, I shot my first tom with #6 shot at 40 yards and it took off, so I had to shoot it again. The
second one had me switch to copper plated #5 turkey ammo with 2 ounces of shot, and it anchored the bird at 43 yards...so I'd recommend #5 if
you're going with lead, as you'll have more pellets than with #4.