This is a second focal plane scope built on a lightweight aluminum tube and it’s only 6.8 inches long and weighs just 16 ounces. The capped turrets offer ¼ MOA adjustments to the HC-1 reticle ...

You'll just have to use some basic math. Depending on whether your scope uses MOA or MIL will depend on how many clicks you need to make. For MOA, one click is equal to 0.25″ at 100 yards.