hogan,
Accurate 4350 is no longer called XMR, and the latest version (made in Canada) is considerably slower than IMR4350 and H4350. Or at least my most recent batch is, closer to H4831 than either of the other 4350's.
A couple of manuals other than Sierra's have been listing the most accurate powder for their bullets for a number of years now. Both Varget and RL-15 will work with 165's in the .30-06, but the Barnes manual lists IMR4064 as most accurate. But Nosler's latest manual still lists IMR4350 as most accurate, as it has for a long time.
Last edited by Mule Deer; 12/01/16. Reason: spelling edit
