the wsm's were brought out almost ten years ago. I know its not 60 years. But they are still selling left and right and anywhere I find 300 win bullets I find 300 wsm. I dont think the short mags are going anywhere. 75 years ago the 220 swift wasnt gonna stay around long either. Nobody can predict what cartridges will and will not weather the test of time. The short action light weight rifle combo will continue on. I have the 270 and 300 wsm and love them. I agree you cant tell the difference between the short mags and the standard magnum cartridges. If you cant tell the difference why put one down and praise the other. Between the two (7mm rem or 7mm wsm) I would take the short mag everytime. But thats only if I had to keep it the way I bought it. Ill never own another 7mm remington because like the 3 I already have, they will all turn into stw's. In my eye thats where they really start to shine.