ericth wrote:fleadermouse wrote:Secondly, TNT makes a good shell bursting charge dynamite does not.
I'm curious as to why that is?
Because nitroglycerine, even stabilized, is shock-sensitive enough that firing the gun will detonate the shell filling.
If you look up the USS Vesuvius (1888), you can get an example of the lengths necessary to use dynamite as a shell filling not-very-successfully.