Reloader 26 was my best best of getting 3k out of 160s with solid accuracy. The 7mm RM is a great round and the best of the mags imho.
I know this thread is about the lighter bullets, but Re 25 and Re 33 will both go over 3000 fps with 160 Partitions in my 26-inch sps and are very accurate. Elk hate them.