What are you doing with it?
The Burris Ballistic Plex scopes are IMHO a great hunting scope for a great price. The tick marks get you within an inch or two of dead-on at any reasonable range, with no fiddling around. That's just what you want for hunting.
For 800 yard target shooting, I'm assuming you have a somewhat expensive rifle.
I doubt it matters worth a hill of dogpoop what reticle you have if you're target shooting, apart from your personal preference and contrast with the target you're using. A high-magnification, adjustable objective, top-quality scope with target knobs, with whatever reticle floats your boat, is something to consider. Cheap, it ain't. But the convenience of the BPlex is really there for hunting; for target shooting, you have time to consult your notebook and turn the knobs for your desired range. In return, you get more precision than the BPlex provides.
God, the idea of sighting in every 100 yards and charting the clicks sounds like a collosal bore! I guess that's why I have 3 12 Gauges and only 1 .30-'06!
But hitting targets at a very long range, now that IS fun, I will admit, and I've never even tried 800 yards, except at Pepsi bottles with someone else's Weatherby Lasermark with a hunting scene laser-carved into the stock as an expensive form of checkering.