I really never start with the goal of developing a load for target practice, but when developing something new and starting around or under a published starting load, I usually find something that works well before I get halfway to the max.
I wouldn't consider 9.0 to 10.0 grains Unique behind a 240 grain cast LSWC bullet a "Powder Puff " load ... that bullet should be moving at around 900 to 1000 fps !
A 240 gr. bullet at 1000 fps ain't no powder puff ... let's call it a nice accurate mid-range load .
... but lets not call them powder puff .
Gary
I don't beat up any S&W with hot or heavy loads. What is the point of blowing excess lead & powder over the hill to punch paper at 50yds or less?
41-44-45s keep them right at 800-900fps. That ain't powder puff, about Special level. Plenty good to take care of most needs. I do powder puff Target WC loads at 700-800fps. I still wouldn't be afraid to shoot a deer at 50yds with these. Same goes for 357/38, cast WCs at low vel do well.