The best way to zero your AK-47 scope is by taking it to a gun range and ideally one that has targets, especially for zeroing scopes. You should use a gun rest when zeroing, as this will reduce the chance of human error. Once you have this setup, you can fire off a few shots and see how close the grouping is. You can then make adjustments until the center of your scope matches where the bullets are hitting. It’s important that your scope is tightly secured to the mount so that there’s no movement that can knock your scope off zero.