I really hope the Grendel comment was supposed to be in purple. It is a very simple cartridge choice and available in many platforms. Why would a .300 Savage be the perfect round? It is double the cost per round and my quick search shows that it is actually harder to find ammo for.
Hornady Superformance and Federal blue box I see at some shops.
3 or 4 boxes of factory ammo, reload............non issue.