MonstrumH-Series V2 Ultralight Offset Picatinny Scope Mount

Approximate height over bore?

?Will this work on a air rifle with a magazine

Well this work on a Marlin 22 long rifle model 795 with a microgrew barrelWell this work on a Marlin 22 long rifle model 795 with a microgrew barrel s

Will this work on my 303 british rifle