A tip off mount is a mount intended for use on a grooved receiver .22. A mount that pivots the scope out of the way is called, well, a pivot mount. Don't believe me? (I agree it is counter intuitive somewhat.) Look them up in some old catalogs.
Not trying to be a smartass, just trying to correct something that seems to be crawling into the common vernacular and help you be more knowledgeable in the next bullshit session at the gun shop.
(And yes, the pivot mount was an answer to a question that should never have been asked.)
