Thank you....I returned the previous drilling; 12 gauge is too heavy for use as a shotgun. I am learning quite a bit about drillings; such as the fact how many people in the U.S actually hunt with them, and 16 is the gauge of choice. I would prefer 7x57R, but the 7x65R is quite popular in Germany and other parts of Europe. Ammo is readily available here. This 16 gauge/7x65 has 26" barrels as opposed to the usual shorter ones and is choked mod & full. Can the scope be replaced with another rail scope in the 6x42 size?