Tested a 28 Nosler a couple months ago. Didn't have time to test a zillion powders and bullets, but did test a few, and the best load was 160 at just under 3350 fps, using published data with Norma 217. That's from a 26" barrel.
There were zero "pressure signs" but I am sure the load could have been pushed some more without encountering any, since SAAMI maximum pressure is 65,000 PSI and pressure signs don't usually start showing up until around 70,000.
