[Elderberry]

interesting, i'm curious if 1kg is kinda the sweet spot for a #8 to have enough brisance to produce a HOD or if using lets say 10kg or more if the burn rate would drop below 19,000fps so that the rest explodes instead of detonates

I have never heard of a transition of detonation to deflagration in explosives. I understand the opposite can occur though.

Once the detonation wave is traveling through the smokeless powder, I would expect that the entire mass would detonate.

Unless the quantity of smokeless powder is below its critical diameter, or the initiator/detonator is not powerful enough. And then the smokeless powder never achieves detonation.

However if the smokeless powder is strongly confined and of sufficient length then deflagration to detonation could occur.

[Chode]

i'm guess my point/wondering is, if the high speed wave from the detonator is what causes detonation and not the powder itself, meaning the farther away from the detonator the slower the wave, that's why i said maybe 1kg was a sweet spot, where more powder couldn't sustain the wave

but i don't have the ability to calculate it