Yup, them's the ones.
They are soft, so they're not for velocities over 1,000 fps.
In general you want a lead bullet equal to to your groove diameter or .001" larger. Softer bullets for low pressures/velocities, harder bullets for higher pressures/velocities.
I like to target shoot at 50 yards and beyond with my .357's so for me it's all about accuracy, price is secondary.
My main load is the Hornady 158 LSWC over 5 grains of Universal. My light load is the Hornady 140 LFP over 3.5 grains Clays.