Expendable Breech Gun Round.
Patent, Filed 28 Oct 75, patented 12 Nov 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A round for an expendable breech gun wherein a filament reinforced breechcase is lined with propellant throughout its length whereby the burning rate of the propellant in effect varies with projectile speed within the breechcase. A metal or plastic honeycomb bonded to the inner wall of the breechcase provides mechanical support for the propellant and precludes axial progression of the flame front in advance of the projectile. An alternative construction employs a propellant lining having a succession of increasing burning rates from the breech end to the muzzle end of the breechcase.