Len and Dave,
Great topic - there is a wealth of experience on this forum to help someone get into long range shooting. First things first - the prospective shooter has to understand that long range accuracy is for real, it is not a fluke. Then he has to start learning what is involved in making long shots - and the fun begins.
Long range shootiong can be hitting gophers at 100 yards with rimfires, you don't have to own a .338-378 to shoot long.
Very few shooters become proficient long range shooters and hunters, but the ones who do have a lot of enjoyment. Personally, I enjoy clanging steel or smacking far-off rocks because I can simply do a BUNCH of shooting.