[Jeremy]

http://www.nationalmatch.us/

This should help you out.

Just about everyone makes match guns, the main thing will be sights. No scopes in the service rifle classes so you'll need a good set of apperature sights and a good reloading set up if you want to be cmpetitive, if your just in it for fun anything will work.

 

[Jeremy]

Match rifles are .223 chamber, there are many many different 223 chambers for match that are all a little different.

The advantage of handloading is load building specifically for your gun, some loads shoot better than other from 1 gun to the next and for longer ranges you can hand load heavier more aero dynamic bullets that you can't buy factory loaded.