I'm tracking that ZQI ammo is manufactured by MKE in Turkey. If you haven't added a dab (just a dab) of grease to your bolt lugs, that might help if you want to keep using the ammo. Other than that there isn't too much to do but accept that most M80 ball surplused into the civilian market was designed for machine guns or semi-auto rifles with 7.62x51 chambers, and can be hard to extract from the slightly tighter 308 Win chamber.
Jimro