rc42 wrote:Not many shooters can access Cat D semi-auto rimfires so any advice is probably going to be generic and not from experience with that particular rifle.
What are you planning to shoot with it? Do you have a rat infested farm or similar?
The rapid fire capability and use below 50m suggests that you will need fast target acquisition so lightweight low magnification scopes, red dots or iron sights would be on the shortlist.
Semi-auto rimfire is CatC in all states I think. CatD is centrefire.
As a kid I had a 10/22, Winchester 190 and a pair of Stirling Model 20's.
The Winchester was the most accurate and would cycle anything, but has a tube mag.
Back then I just used a fixed 4x32 scope on them when I wasn't using the iron sights, but there weren't any other options.
A reflex sight would be pretty neat nowadays I reckon, but at 50m I think I'd prefer some magnification.
I have used a reflex and a red-dot on the Umarex 10/22 air-rifle around the sheds with surprising accuracy. From memory the only .22LR I've tried a reflex or red-dot on is the Henry H001 and I didn't find it very useful at longer ranges just due to the size of the reticle and lack of magnification.