I am surprised I just found this thread thanks for the information . I am in the process of starting load development with the Lyman 429244 bullet (COATED) mine are a soft alloy finished with gas check they are running 258 grains .
I was using IMR-4227 with conventional lubed bullets thinking of trying H-110 for these I see the Lyman 49 manual dropped the powder charges a bit from older books.
A couple years ago I bought a new can of Alliant Reloader 7 I was shocked when I poured some out the appearance it looks nothing like the older can I have!