For anyone around the OC area, and those that want to drive a little, On Target shooting range is holding a long range shooting seminar. Here is a link to their webpage.
Here are the particulars, some that aren't on the website yet:
Four Days (Two classroom, Two range)
Everything from zeroing to 800 yrds.
Range is out by Yermo
Instructor is a Marine Corps Scout/Sniper instructor at Pendleton. He works Friday evenings at On Target if you want to talk to him.