Hope to have info on this combo this coming elk season. Daughter #1 will be using 150g ABLR.
I've used the 150 partition in the 270 for years and it was 100% reliable every time. I gave my 270 tikka to the son in law a year ago so unfortunately I don't have a 270 to test though I'm certain it will be a great combo with the 150 ABLR.
With the 150 partition my two favorite loads were 61 gr of RL26 and 58.5 gr of H4831SC. Both loads were temp stable and accurate though I would lean more toward H4831SC for accuracy and RL26 if you want velocity.
This year I'm useing a 6.5 swede and it's going to be either a 130 accubond or 142 ABLR I haven't decided just yet. Maybe use both on different game
Best wishes to you and your daughter hunting this year sir
Trystan