Why some 22 rifles can shoot shorts, longs ,long rifle

[Hawkeye6]

Further to your post, Jack. I have a Ruger 77/22. I 've never trid it, but I am certain that I could had feed it with shorts or longs (if I oculd find them). But I'd not be able to use it as a magazine rifle. the rotary box is set up to only feed LRs. (And like GOB said, in a somewhat finicky fashion at that.)

H.