Hodgson  load data states 4.0 to 4.3 gr WST powder for LRN .45ACP.  It is my understanding it is best to use LRN data for plated bullets.  
This range is more narrow than Titegroup!

I have no problem starting at 4.0 gr but was curious what you guys are doing for WST 230gr .45 loads.

Yeah, you are corredct about the velocity not being all that much.  I'm always hesitant to exceed LRN data though.  I'm still new to reloading and therefore, frightened.
Hodgson says 4.9 is the max for fmj

One of my best target loads is 4.5 gr of WST pushing a 200 gr plated bullet out of a 1911. There is very little recoil and the accuracy is great for me.

On a side note the same load will not run the slide on my G21. When I use the suppressor on the G21 it will run because of the increase in backpressure.

Good luck

4.3 grains of WST just makes major with 230 grain lead boolit. My favorite load for it. Takes pins down good.

230gr. Zero FMJ averaged 734 fps with 4.6gr WST 1.265" OAL out of a Glock 21.

I reloaded 4.6gr WST under 230 gr Ranier's and Berry's plated RN bullets over a 12 year period. They can take more than the Lead bullets.

No evidence of any issues of pressure, or anything else compared to FMJ.

Berry's says "We recommend using hard cast load data or start with mid-range jacketed data."

http://www.berrysmfg.com/faq-q21-c1-Load_Data_for_Berrys_Preferred_Plated_Bullets.aspx

You guys rock, thanks.  
I'm using 230gr plated bullet heads from the bulletworks. They look nice but I have no iidea how their plating compares to Berry's.

I think I'll run a hundred at 4.3  and see how they shoot.

I run 5gr WST with both the lead bullet I cast,, bearing surface identical on both the RCBS 201 SWC and the RCBS  230 RN..


WST and lead in 45acp for the WIN !!  I aint used 231 since 88/89 era when 452 changed to WST.. always had WST for 12ga, why not 9mm and 45acp...

I loaded up 100 with 4.5-4.6 gr WST tonight.  Stuff looks like dried, minced garlic.  
Couldn't get my Lee turret press to load less than that without dropping all the way to 4.0 gr.

I did some tests not too long ago with WST and 230 FMJ. Started at 4.3 and worked up to 4.6, 4.6 was the most accurate in my 3 1911's, 4.3 cycled just fine, but was working for accuracy. Will be casting some 200 gr swc soon, and will test it some more. I like WST so far, easier to find than 231 or HP-38.

ive never had a problem using plated bullets up to mid level jacketed charges

ALWAYS work up, I started with the start data for LRN and worked up to mid level FMJ

I loaded another 100 last night using 4.2gr.  
Will be testing both loads tonight in my R1 1911, XDS and P220.

4.2gr felt like a 9mm with the sponginess of a 22LR.  you know when you fire a .22 and you can see the slide move back and forth?  Kind of like that..
It cycled through the XDS and R1 fine but didn't strip a round a few times on my P220.  The 220 has a very strong recoil spring and is difficult to rack so that probably had more to do with it than the ammo itself.
the powder felt sour and was a little smokey but did burn 100%.  

4.5 felt more like a factory ammo but neutered.  It cycled through everything with no problem.

This was with WST powder.

4.6 gr of Titegroup felt more punchy and was the most fun to shoot.

Accuracey was pretty much the same but I did have to concentrate more to get the 4.2gr into the bull.
I've shot better with crappy Russian ammo but you get the idea (That's 4.6 Titegroup in the center):