About 20 years ago I picked up these components from a fired telescoped 75mm ARES Gun round. The case is a composite of a steel mouth and Head with a plastic tube in between. I have attached some web addresses of articles that discuss the gun. As I was researching this info to post, I learned that the gun was designed by Eugene Stoner.
These parts came from a scrap yard, and originally the steel had rusted. I sand blasted the steel and painted it black. The white part is the original color of the plastic.
This case is overall 400mm long. The case head is convex and the front of the case is also convex. There is no measureable taper to the case, and the straight section is 384mm long.
There are 2 fired Tungsten darts in the 2nd and 3rd photos, one with remnant fins. This round uses 4 sabots, 3 of which are shown. The darts have very fine external threads that engage grooves in the sabots.
The dart is completely enclosed by the case. The case mouth is a steel tube that extends 5 inches into the case to center the sabot. There is a steel cup inside the head of the case, which centers the fins and dart directly over the primer, and this cup has a radial pattern of holes for the primer gases to ignite the powder. This cup is shown in the next set of photos.
http://www.angelfire.com/art/enchanter/tankita2.html
http://www.secretprojects.co.uk/forum/index.php?topic=1702.0
http://www.aresinc.net/engineering.html
These parts came from a scrap yard, and originally the steel had rusted. I sand blasted the steel and painted it black. The white part is the original color of the plastic.
This case is overall 400mm long. The case head is convex and the front of the case is also convex. There is no measureable taper to the case, and the straight section is 384mm long.
There are 2 fired Tungsten darts in the 2nd and 3rd photos, one with remnant fins. This round uses 4 sabots, 3 of which are shown. The darts have very fine external threads that engage grooves in the sabots.
The dart is completely enclosed by the case. The case mouth is a steel tube that extends 5 inches into the case to center the sabot. There is a steel cup inside the head of the case, which centers the fins and dart directly over the primer, and this cup has a radial pattern of holes for the primer gases to ignite the powder. This cup is shown in the next set of photos.
http://www.angelfire.com/art/enchanter/tankita2.html
http://www.secretprojects.co.uk/forum/index.php?topic=1702.0
http://www.aresinc.net/engineering.html