Sorry, 37-40gr weights. A R.E.M. 700 with 26" barrel. Chamber is a .232 neckMy guess from running a .222 and .17FB is that N133 will be a great choice for accuracy and velocity. Gonna depend on bullet weight for charge weight.
Have looked on saubier and on ramshot/accurate at 20VTT loads but no love for these powders. Most data is pre 8208 so any help appreciated