Alliant doesn't list any RL-26 loads for bullets under 150 grains for the .270. It might be too slow-burning to get enough in the case for decent velocities with lighter bullets, but they also don't list any loads for Reloder 23 with bullets less than 150 grains.
I tried 26 with some other 150-grain bullets this morning. 61 grains with Partitions is a little warm, judging from the muzzle velocity of close to 3100 fps, so I'm going to back it down to 60, but it was about right with 150-grain Long Range AccuBond.
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