Iraq declared that it had produced 170 of these base-bleed sarin artillery shells as part of a research and development program that never led to production. .."
The Base Bleed Unit generates gas that fills the vacuum behind the projectile base, reducing base drag on the fired projectile by up to 80% and increases the range of the shell. From what I could find they are detachable. If this was true of this Iraqi shell, it may be the case that the unit was not installed and would be unnecessary anyway when the shell was used as an IED.
I can only speak to the Corps 155s. We dont have anything on the bottom of our shells.(Copperhead and R.A.P. excepted) Just a flat bottomed shell.
