Hmm.............
According to two of my neighbours who have lived in my small "Victorian street (1895)" since the 1930's "wartime kids".
SC500 and SC250's did drop at the end of our road on heathland where flak emplacements were installed.
Some plaster
* and glass damage was effected at radius of some 500 yards with the SC250,
a few weeks later an SC500 exploded near the same spot as the SC250,
this cracked the rear kitchen chimney stack on my house from around the same distance,
also removing/loosening the roof tiles as well as glass and more plaster
* damage.
The only protection from the blast was a small copse of 50-60 ft trees between the heathland and the houses where the bombs fell.
A year or so later an SC50 damaged/demolished one of the houses in the street and left the surrounding ones undamaged.
According to that chart radius thingy ........... the whole street and surrounding area would have been blown up, I think it looks a bit too "enthusiastic" .
(* Plaster ceiling mouldings and cornices)
.