I just picked up some Speer GPHP short barrel 135gr for .38 Special to shoot out of my 442.

I'm looking to use my VVN320 but the VV website only lists loading data for 125gr and 140gr. My Lyman 49th ed is the same. Can anyone tell me what a safe starting load and max load would be for +p and standard?

I tried searching but didn't find anything here or google.

Thanks!