Not through my chronograph. Following the current loading manuals I first tried 5.3g then 5.7g of 231 to duplicate ball with Berry's 230g plated round nose. Chronograph results were all under 800 fps in both a 5" revolver and a 5" Government Model. I looked through some more manuals and found a max in one of 6.2g of 231. I first tried 6g and got 834 fps as an average for 10 shots from the Government Model. That's now my ball duplicate load.
Dave
Sounds like you got a slow lot of 231.
I used to be a commercial handloader and used 231 for most calibers I loaded for (except the big-cased ones, like 45 Colt and 44 Mag). I've seen 231 vary from being as fast as Red Dot or 700x to as slow as Unique, BUT, for the most part, it is close to but just slower than Red Dot, about half-way between Bullseye and Unique (in small-cased pistol applications).
You're lot sounds like it is about half-way between it's normal relative quickness and Unique, maybe a touch closer to Unique. Nothing wrong with your load, just be sure, if/when you change lot #s, to re-test starting with a lighter load that is below book max.
The one slow lot of 231 I had (that was basically just as slow as Unique) I couldn't get it to cycle slides until I was about .1gr over the book maximum, so I know exactly what you're speaking of.
However, for the most part, that 5.4 to 5.6grs for the typical burn-rate lot of W231 will be the ball equivalent load.
I did have some lots that were really quick-burning too, so watch out. There's a reason why they say start with the start load and work up OR DOWN!
