I suppose if one feels the pinnacle of loading and powder making prowess occurred some 51 years ago when the 7mmRM debuted, then there would not be any reason to have had scientists such as Dave Emary continue to experiment with new powders and powder blends giving us such new things as LeverEvolution powders and Light Magnum and Superformance powders/blends.

Me, I choose to feel that there likely are some better powders and powder blends available since back when Jack O'Connor was in his hey-day, just like there's better TVs, Cars, Planes and coffee makers. Just my personal opinion, mind you....