The claymore mine exhibits weird behaviour. Within approximately 30 meters of the mine in its kill area, all targets were killed, but moving just a few meters back the targets do not seem to receive any damage, the fragmentation seems to disappear into thin air or turn into marshmallows.
The fragments also seem to ignore penetration, going through 15 civilians without change in lethality.
This behaviour seems wrong and the range is too small anyways, wikipedia says that the M18 claymore mine has effective range of 50 meters and maximum range of 250 meters.