Not really, accuracy is pretty much number one, followed by what is the LEAST amount of powder I use to achieve that accuracy. After all, savings is why I reload.

I bet you could increase the velocity a fair bit if you took the time to machine off the head from the extractor groove back.  Lots of brass back there that is adding to overall length without adding a lot of mass.

Seems like there was a guy on the swaging forum at cast boolits that had done exactly that, but it has been several years.  Don't recall his results.