I used Hornady 6.5 Grendel ammo in my Custom CZ-527 chambered in 6.5 SAOD - a Grendel variant - to take this management Aoudad (ewe) in New Mexico. Accuracy is superb with groups averaging under .500" and the terminal performance of the 123gr A-MAX bullet was great. The bullet passed completely through on a hard quartering shot at 368 yards and dropped her in her shadow.