Centurion is based outside of San Antonio, TX. I believe they are the current morph of B-K bullets. B-K was a decent commercial reloading company. We used their ammo for many years and had few problems. They folded up and reopened supplying a variety of ammo including the Aguila line.
Aguila is made in Mexico and has a decent reputation for their .22 rim fire ammo. A word of caution - Aguila does not carry any product liability insurance on their. ammo. Mexican law shields them from law suits. If their ammo damages your gun or you, you have little or no recourse. You are SOL.
Centurion is a brand name that I cannot find much about. Are they a DoD contractor? I do not know. If they are, they are not likely making ammo for American troops/weapons. They may be supplying ammo to DoD who in turn gives it to our allies (Iraqi, Afgan, etc.). For that price, I would be inclined to go with PMC.
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"Robo is right" Fuzzball