Well got to do some work with RL26 and the 175PT.
68-2968
69-3013
70-3015
70.5-3035
71-3049
70 shot the best so played with seating depth from about 3.492" down to 3.460". 70 and 60 shot the best around 3/4" with 60 being 2 same hole one about .75" out. Might have a harmonic issue with the rifle as well. When I shot the 60 group first 2 were spread then 3&4 were 2" low right and 5 going in same hole as #1. I thought initially I pulled 3 so went loaded one and 4 went same spot so went loaded another and it went into the same hole as one.
Pretty fatigued at that point had shot around 35 rounds.
That sounds about right from a 24" barrel....ditto on the 180-195's as a target velocity.
It'll vary a bit depending on barrels....like any other cartridge.
