I haven't tried 140's yet but will as soon as the weather calms down and I get the rest of the 130-grain testing done. (Montana's rainy season, which normally starts in May and tapers off by mid-June, decided to start in mid-June this year, and its bee rainy AND windy for a while.) My figuring is also that 3300 or close to it should be safely attainable with 140's.
The guys at Nosler also informed me they'll have data for 140's up pretty soon, but another educated guess is that max charges will be 2-3 grains lower than for the 129 LRAB.
