You indicated you don't have a lot of experience at these matches, so first and foremost, make sure you have decent dope for your rifle/load that will get you on paper at 1000 yd. You will find plenty of help if you aren't on paper right away, but new shooters often waste a lot of rounds trying to get dialed in. Sometimes, they'll shoot so many trying to get on they are unable to complete the last match, which I'm sure is very frustrating. Bring plenty of loaded ammo; 60 rounds of record fire plus sighters means you'll want at least 75 rounds, but 80-90 rounds (or more) may be better for your first time out.
Obviously, having a rifle and load that will stay supersonic to 1000 yd is also highly desirable. Avoid using a load with 168 Sierra Matchkings if your going to be shooting F-TR (.308), they just really aren't up to the task for most that have tried to use them. Also, you'll need a minimum of 25 MOA to as much as 35 MOA elevation turret travel up from your 100 yd zero to get on at 1000 yd.
Bring a shooting mat, spotting scope, timer, and any other items you may want on the line when you're shooting.
If you don't know already about how to do pit service, here are three videos you can watch to get some idea of what it involves:
Target Pulling (Working in the pits) - Part 1 of 3 - YouTube
Target Pulling (Working in the pits) - Part 2 of 3 - YouTube
Target Pulling (Working in the pits) - Part 3 of 3 - YouTube
The wind conditions at Range 117 can sometimes be pretty challenging, so fast pit service is very helpful to the shooter. Typically, 10 seconds or under to run the target down and back up is very good. Alternatively, there is a place on the pre-registration if you want to request a puller. XTR posted a sticky at the top of the F-Class forum here with some good information about F-Class (F-TR):
http://www.snipershide.com/shooting/f-class-f-t-r-competition/197762-f-tr-faq.html
You'll have plenty of time to ask specific questions you might have before the match and in between rounds during the day. Everyone is very willing to help out new shooters, so don't be afraid to ask.
Bring plenty of fluids, a snack if you want one, etc. It could be pretty warm, but it's hard to tell at this point. A folding chair is a good thing to have as well. There is not much shade to speak of at Range 117, so suncreen or similar is a good idea.
Hope this info helps. It's always good to have new folks shoot so come on out and have some fun.
