Military switching to "green" bullets (Military.com)

[Sticks]

Still need some sort of fuel for the combustion, and I would think that gel would have a hard time compressing to 300psi...could be wrong. It can't be just air, or there would be no need for big oil.

Is is some sort of chemical reaction with the gel? Is the same thing happening in flesh/organic tissue? I would think you would see some sort of cauterizing in the permanent wound cavity.