Mr. Watson's post covered the question very well. I think the best choice for general rifle experience and training is NRA Conventional High Power. It involves shooting from position at distance. There are events held just about everywhere and can even be held at ranges with shorter distances with the use of reduced targets. F-class is more relaxed in that you shoot from sandbags, bi-pod or other type rest but the target is very difficult. Look into a local High Power match in your area and see if that's something of interest.
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