Sorry, nothing in the book about 38 and 357 125 grain projectiles out of short barrels.
The reason why I posted about the 138 GDSB HP is because that's what they shot out of short barrels in 38+P and 357.
Yes they are both specialized loads to the specialized bullet. Speer sells the same exact bullets for handloading and they caution in their manual not to use the 110 grain GD bullet in .357 magnum at all, as it's designed for .38 spl velocities and the cavity is close to the base and it will deform in the bore under those pressures. The 135SB bullet is also designed specifically for expansion at lower velocities. But they do have data for the 135 SB bullet at over 1300 fps in full size guns so maybe I need to go pick some of those up.
For the record the factory .38 +P 135 SB loads clocked right on the factory's claimed velocity out of my 442 that I had. I mean the average was like within 3 fps of it.