Yesterday I also shot one group with RL-15.5 in the 30-06 that was promising.
155 Scenar, .020" off lands at 3.330" OAL
54/RL-15.5
CC1 200
Fed case.

2975 FPS with an SD of 7. I pulled the second shot and still the group was 0.85".

The 30-06 may end up being a case in which RL-15.5 really shines. Plenty of data for it on Alliant's site too. This is my buddy's rifle and I am doing accurizing and load work with Noslers for his sheep hunt. I just threw that one load above in since I was taking it to the range anyway. Will try this out in my own 30-06 rifles when I get the chance.

Cheers,
Rex