Based on the .45-70 case, this proprietary cartridge is made popular because of its big power but manageable recoil.
RELOADING - BRASS - Page 7 - Shooting Surplus
Starline Brass .480 Ruger Unprimed Brass Large Cartridge Case, 50
Starline Brass Rifle, Handgun, and Pistol Brass
Starline Brass 480 Ruger Bag of 100 (Bulk Packaged)
Starline Brass 300 HAM'R Bag of 100 (Bulk Packaged)
480 RUGER
Ruger .480 brass
STARLINE, INC 480 RUGER BRASS
Starline Unprimed Brass 480 Ruger Handgun Ammunition Reloading
Starline Brass STAR480REUP5 Handgun 480 Ruger Brass 50 Per Bag
Starline Brass 475 Linebaugh Unprimed Bag of 100 - Graf & Sons
Starline Reloading Pistol Brass
Starline Brass, Brands
Starline Brass .38-55 Win Unprimed Brass Large Cartridge Case, 50
RELOADING - BRASS - Page 7 - Shooting Surplus