Paul, it appears that you DID attain a 'usable' increase in precision.

>A compressed load of H322?  39.5gr?  Is that H322 Extreme?  I have never gone up that high.  The highest charge I ever used with the 134 bullets is 37.5gr and with the 125s is 38.0gr.  And I thought these loads were on the hot side in both of my barrels--I was having brass stretching problems.<

Yes, this (charge  weight of the EXTREME version)  has proven safe and PRECISE in [most of] my barels. In the 30x44, it pretty mush FILLS the case. However, ya have to go with the pressure signs in your rig.

Keep 'em ON the X! R.G.