Need 38 special loading advice.

About to pick up a S&W 19-3 but plan on mainly shooting 38 special not 357 mag. Plan on informal target shooting and possibly shooting CF for fun at the small local matches.

I already own the 150 grain Keith style mold made by Magma, using wheel weights it will drop closer to 155 grain. I also have tons of WST on hand I'd like to use.

What do you guys recommend for target velocity loads, I need:
Grains of WST
OAL
Crimp diameter

Thanks in advance.

I can help with 2 of your questions. If the bullets have a crimping groove, just roll crimp the case mouths into it.

Crimp to .375, either taper or sight roll since it does not have a crimp groove (looking at the photos of it on the internet).
OAL, just seat to the top of the shoulder, can't give you a definite length since I don't have that bullet in front of me to measure.
Start with 3.0 of WST which would be equivalent to 2.7 of Bullseye.

HARD CAST 158GR WILL NEED 3.3 TO 3.5 GR WST FOR ACCURACY AT 50 YDS. SWAGED 158GR NEEDS 3.1 TO 3.3 GR WST FOR 50YDS. JIM  P

Here's the bullet mold I have, it's the 150 grain model. So would you consider the groove on the top a crimp groove? I've never used a bullet with a crimp groove, do I do anything in particular compared to a regular bullet? I'll be using a set of Dillon dies which I think are considered a taper groove.

YEP THE TOP GROVE IS A CRIMPING GROVE. JP