Originally Posted by
indian joe
The chart on page 28 shows the Maximum pressure generated by the density of the powder, in a closed system. Earlier charts show pressure based upon density of compaction, etc. Please go back and reread all of my previous comments about pressure. All of them start or end with the words, “unless you do something stupid.” The “something stupid” is leave an air gap or plug the bore in a manner that creates a closed system, and then yes it will turn into a pipe bomb, because 20,000+ psi is a tremendous amount of pressure. If you take your favorite rifle and double or triple charge it and seat a ball on top of it like you normally would the only things that will happen is it will kick like hell because of the additional payload of unburnt powder + Ball, you will have a huge fire ball and a bunch of unburnt powder all over the ground.