I was actually just searching for "38 wadcutter" on GB and I found a guy that had 9 lots of 200. I wish I had snagged a second lot of 200, but I don't know if that is really necessary or not.
To those who have suggested 148 WC data. Those loads are typically really reduced and optimized for target velocity.
The HST 130 is a jacketted defensive bullet designed to fit flush with the case mouth, and be pushed faster than a normal lead WC.
Things that are causing me to pause:
1- Increased pressure of using a jacketed bullet instead of lead.
2- This round is seated flush like a normal WC, reducing volume and increasing pressure.
3- This will be fired from a model 36 and model 10, so I am trying to stay within safe 38 or 38 +p pressure limits.
So for example, hodgden lists 148LWC using CFE as 3.5grs at 14kpsi to 3.9grains at 15,700psi
Given they list 38 spec pressure limits at 17k psi, that loads is still under max pressure. I am using a lighter bullet (less pressure) but it is jacketed and has a long bearing surface (more pressure?)....
Worst case, these bullets do have a crimping cannular so I could abandon the idea of loading them flush and use 125-140gr jacketted as a guide at seat the bullet to max COAL.
I'm also going to try some magnum loads for my 649... but thats another day.
Lastly, for those wanting pictures of the bullet.