Zero in for 200 yards. You'll hold a bit low closer in and a wee bit high on your farther shots. If your scope allows you to dial in, then zero for 100 and adjust your elevation as required.
This is what it's all about:
http://ilovemypet.com/GNTZ/Gopher I.wmv
This is what it's all about:
http://ilovemypet.com/GNTZ/Gopher I.wmv