The Winchester 9422 I have is a good rifle and very fun to shoot. It's like new has not been shot much.
I noticed it's tube feed tends to be too easy to come out of the tube housing.

Can the housing be adjusted for a better fit?

Also the trigger after cocked ready to fire has 0 play and 0 take-up. I expected a small amount of take up.
Is this common with this rifle?

The tab that catches the pin on the mag tube can be bent inward slightly to give more friction on the tube or the notch can be deepened slightly with a small end mill, file or dremel. The trigger is normal providing it hasn't been dicked with. There is no second sear. Only the trigger and the hammer and they have positive angles on their sear surfaces. I would be willing to bet that if you pull the trigger mechanically with a small clamp you will find that it does indeed have take-up. You simply can't feel it because your finger stacks up the weight and it suddenly lets go.



mag catch by Rod Henrickson, on Flickr