Schmit,
Yes, a shotgun is made to be pointed rather than aimed. However, when you stick a slug barrel on it or are just shooting slugs things change because then, in effect, you are shooting a rifle.
And yes, a low-power scope might be workable but again, you are shooting at less than 100 yards where open sights will do everything a scope will do.
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Keith
The Bears and Bear Maulings Page:
members.xoom.com/keithrogan