That's a steep price to pay for pow.
I don't use RL26 for that reason, but I've had good luck with other powders. I'm still developing my 165 ABLR load with N570 so I don't have it listed. I can look at my charge weights after work, but the chronograph wasn't working the day I looked for pressure, so I only have max charge data without velocity.
My 145 ELDX load is what I used for NRL Hunter One last year so it's under pressure significantly.
145 EDL-X, 66 gr Magpro, 250 CCI, 3045 fps @85°F, 2.916" OAL, Winchester nickel brass. Target Load, 3 grains under pressure.
170 EOL is not max, but close.
170 EOL, 65.5gr Retumbo, 250 CCI, 2957 fps @ 85°F, 2.951" OAL, Win Nickel brass.