My Alliant guide from 2003 lists 6.5 max of Unique for a 155gr laser cast bullet at 1.125. Recommend starting 10% less and work up. It also lists 8.0 gr for a 150 gr jhp.

The 2016 guide lists 8.0 gr for a 155 gr gold dot.

Lyman cast manual (4th) has 5.0-6.3 for a 150 gr. lead bullet. For some reason there is a big difference
in Unique loads for lead and jacketed bullets.