Yes... Given the bullet weight and seating depth, I didn't find much published loading data to go on. So my starting loads were tested first in a BSA Martini Cadet rifle chambered in .357 Magnum, then tried in a .38/44 before finally moving to a +P rated 640 snubby. The velocities mentioned are from the snubby.
The 2400 loads with the 190 - 200 grains combinations are below the starting loads for a 195 grain bullet listed in the 45th Lyman manual. I don't doubt that these are +P loads, but primers are roundy, extraction easy, and still plenty of unburned powder. Certainly not the best load, but I believe it's safe.
The 140 grain loads with 4756 are a different story. I still started with the Martini and 38/44 before moving to the snubby. And my final load (with a five-shot average of just under 1000 ft/s from the snubby) was under the starting load published in the (notorious) Speer #8 manual for a 158 grain jacketed bullet. But unlike the 2400 loads, these were starting to flatten the primers and cases were not sliding easily out of the cylinder. 4756 is definitely not the right powder for this sort of thing. But by the time I soured on the 4756, I also learned that sectional density, not velocity, was the key to increased penetration and so moved to the heavier bullets.