I just finished up the 7mm RM article Wednesday, and sent it off. In the 24.4" barrel of a Mauser M18, 67.0 grains of RL-26 got a little under 3000 fps with more than one 160-grain bullet. The maximum charge of RL-26 listed in the latest Speer manual for 160s is 66.3 grains, which is also listed at a little under 3000.
But as I also point out in the article (which is about new powders and bullets) most new bullets these days have higher BCs than the typical softpoint flat-bases used for years in the cartridge. Today's bullets don't need to be started as fast to obtain "magnum" downrange ballistics.
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