I think I know the answer, but since I never tried, would like to get a definitive answer.
Have a Remington 870 with 28" smooth bore, ribbed barrel and (now) a 23" rifled slug barrel with a nice Nikon 2x7 scope.
Suppose I zero in the scope with the slug barrel. Now I take off the scoped slug barrel, put on the smooth bore barrel to go shoot trap or whatever, then I take the smooth bore barrel off again and put back on the scoped slug barrel. Is that scoped slug barrel out-of-zero now - will I need to zero it in again?
I assume its out of zero now, but I dunno.
Have a Remington 870 with 28" smooth bore, ribbed barrel and (now) a 23" rifled slug barrel with a nice Nikon 2x7 scope.
Suppose I zero in the scope with the slug barrel. Now I take off the scoped slug barrel, put on the smooth bore barrel to go shoot trap or whatever, then I take the smooth bore barrel off again and put back on the scoped slug barrel. Is that scoped slug barrel out-of-zero now - will I need to zero it in again?
I assume its out of zero now, but I dunno.