GeoW,
Well, today, the 243 is still a roaring success, just like Jack said it was in 1964. The 257 Roberts is more alive today than it was in 1964. The 6mm Rem and the 250 Savage are alive and maintaining their small piece in the big picture about the same as they were in 1964.
Jack's reasons for preferring the 6mm Rem case over the 243 case haven't changed. He had a custom 6mm Rem built for himself. He didn't mention having any 243's, that I saw.
I wish Jack was still around to give us his views on the scene today.
