I am working up a 30-06 load using Winchester brass and Nosler 180 grain partition bullets. I am unable to reach the published velocity using the Nosler loading data and consistently fall 100 to 200 fps short depending on the powder. Now when I compare the load data from Hornady and Speer I see that they both consistently list max loads that are 1 to 2 grains more than the Nosler data. What gives? Have any of you guys noted the same lack of velocity performance loading the Nosler partitions?
When I work up loads for Hornady or Speer bullets, my velocity usually comes pretty close to the published velocity but still falls a little short, but certainly not 200 fps short.