My new 10/22 Ruger & my older, but unfired Walther P22.
The semi-auto 10/22 is kinda fiddly with them little levers down around the trigger.
The lever that holds the bolt open and then closes it is a piece of......over engineering. The colder ones hands get the more cussing at it goes into the operation. My semi-functional hands don't help none.
The Walther works just fine, thanks......must be a German thing.
Sorry, I didn't answer the question.....I hate that.
.22 cal.