Quote History Quoted:
Not for nothing but for some reason I was browsing a lot on the rocketry forum and there have been a fair amount of catastrophic explosions with the refillable motors. There is the same risk with the cardboard and plaster motors but when they explode they don't have the metal shell for
Containment.
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I was going to mention this if someone else did not.
Solid rocket motors that are dropped can sometimes end up with a crack or cracks in the propellant. That crack exposes much more of the propellent and increases the burn rate. That causes excessive pressure that will rupture the case and in essence it becomes a giant firecracker.
I've had C and D motors explode on the pad, and I would not want one exploding in a launch tube beside my head, et alone an E motor.
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Another issue would be finding a rocket that burned quick enough to finish before it left the tube on a model LAW.