Time to continue load development with my .44-77.

[Semtav]

For whatever reason when I loaded the Brooks flat base bullet with the 2 wads, 1 LDPE and 1 HDPE, I got fliers high and right in what would have otherwise been ok groups. The 2 wads worked with the cupped base version of the same bullet, but not the flat base version. That kind of surprises me.

Just for S & G's sometime, try an .030 LDPE wad over an .030 Veg wad.
Can't guarantee them , but has worked for me on my best PP loads.