I spent several range sessions a number of years ago, firing most of the available premium commercial (Federal, Speer, Winchester) .357 Magnum JHP loads in 110gr and 125gr, in my 340PDs, at least 10 rounds of each (and not more than 40 of any one type), at 7 yards, using 8.5 x 11" targets with a 3" bullseye, slow-fire.
Later, I shot many of the commercial premium .38 Special+P JHP or LSWCHP loads in 135gr and 158gr, for comparison.
My interest was in determining the best .357 load, in terms of both accuracy and precision, in that particular little lightweight 1 7/8" barrel gun, since I thought of it as a "carried a lot, shot a little" type of gun, and wanted the most potent load I could get that was also accurate and precise.
I'm not "recoil-sensitive" by any means, but it wasn't really that much fun, though neither was it actually painful. Felt recoil was certainly "sharp" with the .357 loads, especially the 125gr.
The upshot of it was that, in spite of good hold and good sight alignment and good trigger control, NONE of the .357 loads were as accurate or as precise as certain of the .38 Special+P loads.
The overall winner was .38 Special Speer Gold Dot 135gr +P JHP, so that's what gets carried in my 340PDs.