Scopes are anathema on a levergun, especially if handy carry, balance, and clean lines are important to you. If you hunt in the thick stuff at reasonable ranges the iron sights are fine. Go with a ghost ring rear sight instead. If ranges and eyes beg for a scope, the Leupie FX 2.5 looks more in place than all the others and answers the mail for more precise shot placement and 50+ year old eyes. Mannlicher's setup is a nice one.