I have been reloading isnce 1970.
A mild .357 load is a .38 Special load above 700 fps.
I agree. For plinking or trying to hit small game with my 357s,
all N frames, I use light loads with fast powders and cast
bullets in 38 spl. brass. These and full power loads in 357
brass seem to cover most needs. Hard to see a real purpose
for midrange, ( 1000fps?) loads in a 357 revolver. Your load
of 14.5 grs 296 isn't really all that hot. 16 grs 296 with a 158
gr cast bullet yields about 1280 fps in my 4" 28 and about
1350 in my 6" 28.