I find it VERY hard to beleive, espcially at those speeds. That is pretty average slug speed, actually it is pretty poor considering the size of the shells they are using. So any normal slug loading could easily shoot that distance whith that amount of drop if you zeroed it far enough away. The problem would be it would be 25 inches high at 50 yards.

I haven't seen too many smoothbores that shoot that accurate at 50 yards, let alone 200.

Paul