Well, the answer is YES
and NO
The SC250 as well as the 4 x SC50 on the Bf109-3B are not exploding 90% of the time!
There is only one way to make them explode every time:
- Start a steep climb with the Bf109
- With the nose pointing sharply upwards, release the bombs
- The released bombs will continue their upward trajectory for a while and then fall downwards.
That's it, every bomb explodes!
The ME110-C7 with 2xSC500 has no problems
(I have not yet tested a ME100 with SC250s...)