I had picked up a pound of RL26 a while ago and finally got out to out to try it in a TikkaT3 (22" barrel"). Velocity results are similar to others.

65deg
150 partition, RP brass, CCI 200, RL26
60 gr: 2937, 2936, 2933 - 1.21"
60.5gr: 2975, 2975, 2977 - 1.24"
61gr : 2999, 3004, 2998 -1.22

I was impress withed how consistent velocity was shot to shot. Usual load is 57gr h4831sc at 2820fps with .8 MOA groups. Going to play with seating depths to see if I can get RL26 under 1". Pretty good velocity improvement but now I have to wait for a cold day for additional testing