940s are great. I opened mine up for 38SUPER and love that cartridge in them
You can use the projectiles and load data intended for the 380ACP cartridge as your starting point

Velocity will be lower than published 380ACP data because you are using the larger 9MM Parabellum casing

The lower velocity and lighter projectiles will yield less recoil in your revolver

Everglades Reloading offers .355" pre-scored JHP projectiles in 88, 90 & 95 grain that work well at lower velocities.
I use the 90 grain projectile in my 356TSW loadings for my Performance Center 940 Specials. I love how flat these projectiles shoot at high velocity
As already stated the major issue will be that POA and POI may not match

If you are using laser grips, they can be sighted to whatever combination of projectile and powder that you choose.