It is interesting to note, that while the spread of certain chokes does make aiming a shotgun less important, it still requires aiming while using 00 and other types of buckshot. I tested out my shotgun a few years ago (wish I kept the photos) by firing various buckshot rounds at differing distances. The results surprised me at close range. Any distance within my house and the hole a 00 makes isn't bigger than my fist. It makes total sense for defensive use to have ghost sights. I think there is that mentality of "I'll just put it to my hip and fire in the general direction when the zombies break in", when in reality, you still have to aim.
Yeah, at 10 feet - it's just point and click!
Don't gotta aim... my favorite shotgun range is within ten feet.
I find the fiber optic front sights are very helpful. A lot easier to see than that tiny gold bead. I've got the inexpensive magnetic style on my 870 and Winchester 101.
Have you actually tested that "point and click" theory at 10 feet w/ buckshot (I assume that is the ammo you would be using)? How large of a spread do you really get? What specific gun, barrel length, choke, and ammo do you use to be adequate? At 10 feet, I'm thinking that you'll get a spread of about 2-3 inches, and I think that would require aiming at a moving target.
The Box O' Truth #20 - Buckshot Patterns - Page 1
I fiddled with some Rem 870's and 1100 Rem's. I bought slug barrels with sights at Cabelas and then tried slug barrels with screw in chokes. That's my favorite approach. Changing chokes gives you a whole new shotgun!
Flash