TEXAS GAME LOAD TEXAS GAME LOAD CARTRIDGE With a formal US presence since 2002, eventually establishing their corporate headquarters in Texas, Rio has long identified with the good folks of the Lone Star State. It is for this reason they have created a commemorative cartridge to honor the fierce independence and strong spirit of Texas. Available in 12-gauge, Rio's Texas Game Load has become a perennial favorite among hunters from across the country and has come to symbolize Rio's entire approach to quality, consistency and performance. Mfg: Rio Outdoors Corp.