I finally got to shoot the Nosler rifle sent for testing today. Still don't have any factory loads, but had components and Nosler's data for 129-grain ABLR's.
Have only a limited supply of those bullets, but have a bunch of Norma 130-grain Diamond target bullets, so used them for sighting-in and some early results for zip and accuracy. Loaded those with Ramshot Magnum, which Nosler indicates is the most accurate powder among those they tried, and the second-fastest.
The maximum listed load of 82.0 grains resulted in a .78", 4-shot group at 100 yards, with an average instrumental velocity of 3410 fps.
Next will test the other powders listed with the same bullet: Alliant RL-33 and Hodgdon Retumbo, 50BMG and US869. Then will load some ABLR's with the best couple of powders and see what can be done.
