Howdy,
If you communicate with your local clubs, NCOWS or SASS, they will help you get outfitted with enough guns to shoot a match. I've never heard of someone being turned away if they have a helpful attitude and they give a bit of notice. You will need to use the arsenal, that is the way the game is played most of the time, most places. There are occasional matches that are a bit different.
Also, look for new shooter days or programs at local clubs, these are excellent chances to learn, by touching and doing.
Finally, SG has fiven you a clear idea about the basics on NCOWS and SASS. There is also a bit of a regional issue. NCOWS is found mainly in the Iowa, Indiana, Nebraska and Kansas area. SASS is pretty well spread out, nationally.
I will add that the Shootist, the publication for NCOWS is excellent. I had originally thought I would start an NCOWS posse in Texas, but have had second thoughts, but I do plan to keep getting that magazine.
Adios,