.50 Saudi Arabia

I just found this entry in the web and wonder about the “sterile hs” and the color markings at all.
Anybody who knows more about these cartridges?

polygunbag.com/.50CalGreenTI … rView.html

These are listed in the Saudi Arabia section of .50cal BMG Cartridges by Ron C. Fuchs and Ron J. Fuchs: skydrive.live.com/#cid=CEF02399 … 93CC%21118


Brian thanks!
The book gives basically the same info as that site.

Does anybody know why they made cases without hs?