This a great objective!
I hunt grouse with a .22 rimfire with a 3-9 scope. Head and neck shots only to preserve the meat. I will not take the shot unless its head/neck. I have a 20 gauge O/U which is a fine grouse gun, but I love this style of hunting with .22. I do not have a dog, so its all on me to find the birds and get the shot.
I do indeed miss a few birds when I get too shaky. I miss many birds that simply walk or run into the bush and disappear on the ground without flushing, before I can get my scope reticle on the head/neck.
Most birds in the northwestern Ontario in my experience do not flush, or if they do its often after they run a fair ways on the ground to behind a thick wall of brush and timber when they decide to flush. The bush is so thick here that visibility is usually less than 20m, with 5-10m common for the shot. But with enough walking and effort, I get the birds I want. I really enjoy the challenge using the .22.
This is my gear:
CZ 455 Lux. Leupold rimfire scope 3-9 zoom.
View attachment 516853
When I bought that CZ new several years ago it was $450. I expect now its more expensive, but I think you can find a new one under $700. The new CZ 457 Lux models I bet are more expensive than the 455's. I forget what the scope cost.
The CZ Lux models have the iron sights and a tapered barrel for lightness. A fine fine hunting .22!
You will note the cheek riser pad. The CZ Lux stocks are made for the iron sights, so I find for me that extra rise with the cheek pad improves my sight image with the scope.
Often the birds are so close that the 3x magnification is too much. A 1-6 or 2-7 magnification would be usually be better. I tried a 1-4 scope which was OK, but found I sometimes wanted the higher mag for longer shots where the bird was still. Plus I plink with it too at longer ranges than grouse shooting, so I like having the 9x magnification.
Reticle is a duplex. The reticle can disappear in the dark bush backdrop. I think the best reticle for this type of hunting in thick bush backdrop would be a classic German #1 type with the very thick jet black center post with the point. Meopta makes some scopes with this reticle, so I need to start saving money and shopping for one!