In the salvo settings, increase the maximum delay between pulses to 2 seconds instead of 1 second. There are situations during level bombing where 500 foot spacing between impacts works best. The bomber would have to reach a true airspeed of 341 mph to achieve that spacing with a 1 second delay. That speed is beyond all bombers except for the Ar 234. By increasing the delay to 2 seconds, the speed required to produce a bomb spacing of 500 feet would be lowered to 170 mph.
