When i was 12, i read Jack O'Connor every chance i could. He suggested one sight in one's rifle for 25 yard. He said this would have one's rifle be around 3" high at 100 yard, and dead on again at around 260-280 yard depending on what one was shooting. This gave a point blank range of a bit over 300 yard. Of course this was for the common center fire rifles of the 1950's, not muzzle loaders, but the same idea still applies, as sabotloader' calculations show.

Even now, i sure miss reading Jack O'Connor once a month. Recently, it seems, even Pat McManus is gone from the magazine.