This is a Hornady SST known as the Custom chambered in 6.8 SPC, model 8347.
Every round of Hornady(R) Custom(TM) ammunition is hand inspected before packaging to ensure the highest levels of quality control. Hornady manufactures Custom(TM) ammunition to give shooters and hunters the advantage of handloaded accuracy in a factory load.
Features:
6.8 SPC
2,460 Feet per second
120 Grain SST
20 Rounds per box