True, but the OP is also talking about a 30/30 here. For his purposes, the parallax issues from 100-200 really aren't going to matter and he's not likely to need magnification for those ranges. I would just zero at 100,confirm your drop at 200 , and call it a day. Holdover will be fine for most stuff with a 30/30. Optiona'lly, you could get a red dot with a 2 Moa dot. Zero it so that your POA/POI is the TOP of the dot (use it as a front sight post/six o'clock hold) at 100. At 200 yards, 2 moa is roughly 4 inches. So with your 3.2" drop, you could use the dot with a 12 o'clock hold (bottom of the dot) and be pretty darn close to POA/POI. For shots in between, center the dot and you should be fairly close.