I am looking at Rigby London Best in left handed bolt. Possibly with a full-length stock as the Stutzen pictured above, hence wanting a 20" barrel length.I don’t think barrel length matters much with the 9.3x62. Get what ever rifle tickles your fancy. Do you have a particular rifle you are looking at? Are you planning on hand loading or going with factory ammo? You won’t go wrong with any common barrel length in the 9.3x62.
....also my heym fullstock in 9.3x62 makes a big boom noise....totally different from my other rifles...very distinctive
...gun club made them mandatory after a while...which was probably a good idea.