if the barrel comes off, which is the case, it CAN be cleaned from the breech( note spelling) - as far as the accuracy goes, the old take downs used to loosen up through time and probably the softness of the steels used at the time- it's probably still an interuppted thread design, so yes, the same rules apply unless you use the optional scout mount- there , the scope is NOT separating from the barrel, so i don't see why it would shift- in the conventional, mount, yes-also , buying one of these new, i can't see it shooting loose unless you do a LOT of shooting- 2nd or third owner after HEAVY USE, yea, i can see it