>ballistic missile
It all depends on the definition of “ballistic missile.”
I had a neighbor once call the cops to my place due to what they claimed was an “incendiary device.”
Turn out it was an 8 foot deep by 3 foot diameter hole in the clay ground behind my house on 200 acres that somehow got filled with acetylene and O2 and sparked off.
Loud yes, incendiary, not so much.
I had fun with the same mixture but only mixed in plastic bags and taped inside cardboard boxes with rudimentary bottle rocket fuses but they still made big bangs—just not as big as yours, I reckon... ;) But still entertained the party crowd!