Just show up!
I've only shot one uspsa steel match. It was by accident! The schedule had been changed and I thought I was heading to an IDPA match.
If you've never shot any competition there are plenty of people who will help you out.
To make things even better, there is a range is Sandston, maybe 10 minutes from you that has IDPA shoots every Wednesday, and USPSA I think every other week on saturday.
I will be going tomorrow. If you want to come it would be great. It starts at 2:30 and runs till 7pm. Best to get there as early as possible. Round count is approx. 50. I'd bring at least 75 since it is your first shoot. You should have a cover garment of some type. A fishing vest or even an unbuttoned outer shirt. Its not that big a deal since it is your first time. Bring whatever gear you have and people will loan you whatever you need. Since it is your first time everyone will be very helpful.
http://maps.google.com/maps?f=q&sou...ge+Rd,+Mechanicsville,+Hanover,+Virginia+2311
If that doesn't work, click here and click directions on right column
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Check your PMs for my cell number.