These inserts are only made for the "Signature" rings. If you are trying to use the Standard Zee rings that a scope fits into without the inserts...it won't work with the inserts. The other reason inserts maybe too big is if you have the 30mm inserts and trying to fit them into 1" rings. The Signature rings have a rounded bevel or radius machined on the full 360 degrees of the inner part of the rings to accept the beveled inserts. When you have the right parts be it now or later, just remember that you are moving the cross hairs to the bullet point of impact "POI" and the bullet only drops from the time it leaves the muzzle. With that said, if you want more elevation built into your scope rings with the offset inserts; the front ring "the one closest to the muzzle should have the thin half of the insert installed in the lower half of the ring, and the thick mate will go on the top. The rear ring "closest to the shooter" will have the thick half of the insert installed into the lower ring, and the thin mate will go on the top. Now you may only need to use the offset insert in just one ring to get the amount of elevation you want. It dosen't matter which one you do if you only do one ring with offset as long as it's not going to put your scope objective on the barrel. You can use offset in one ring and the standard "zero offset" in the other ring. Or you can use the .020 in one ring and the .010 in the other: Note: Use the .020 top and bottom in the same ring, do not use one .010 on the same ring with a .020 or .000. Keep the mate together. You can also turn these to get more windage left or right if needed, this can be done with inserts and scope laying in the lower rings without the top rings in place and a toothpick will work to move the inserts around to the best guess location. Hope this helps