The nosler brass I have weighs approx. 215 grains on average the PPU weighs approx. 235 grains. Check your weight before starting if the brass is in the 215 gr range I would start at 73 grains of H1000 and work up in half grain increments.
Your max will vary dependent on case length. Is the sendero limited in case length like my model 700's? If so I would anticipate max at 76. My accuracy with H1000 and the 215 hybrid is fantastic the 210 is good as well both in a weatherby accumark. I was not limited in case length at all. I was using either 215 or 215M primers.
Be sure and let us know your results
Good luck and shoot straight
Bob