Dynamit Nobel 5.45 60grn HP is the best availible ammo for this caliber. It is more expensive and somewhat "unavailible" but it is the most accurate and effective ammo that exists for this caliber. You can aquire this ammo from impactguns.com I have also had great luck with Bulgarian 70 grn FMJ rounds, which are very close to being a "milspec" round and I have found them to be superior to many other 5.45 rounds. For general AK shooting, Wolf, Siver Bear/Barnaul or others should be more than sufficient. With the exception of the AA Ghengis or some high dollar 74 clones many AKs in this caliber aren't accurate enough to notice any real difference in performance to make any extra expenditure worth while. The Dynamit Nobel rounds are the only "match grade" rounds availible for this caliber.