.22 Ammo

can .22 ammo go bad? I have 4 boxes of "federal ammunition brand" that I got around 8 years ago. There are a few loaded clips for a 10-22 and the rest of the boxes are unopened and have been sitting in a closet. Do you think they are still good after sitting that long.

I used to shoot for target practice because I am in a rural area and I have space to shoot on my own land but I am not really into guns and hunting, and I don't like getting beat up by the .22. dang thing bruises my shoulder and works me over. so all that stuff has just been sitting for years.