Hello. Long range noob here. I've never shot past 500 yards, but am getting to the point where I'd like to. I've shot rimfire for groups @100 yards & steel out to 300. The rest has been .223 from an AR or Savage 10 out to 500. I want to learn to use the knobs on the scope to adjust for range and possibly wind. Today I use Kentucky, some by guess & some by using a BDC reticle.