Originally Posted by
mtnbkr
Sure! Working off memory here...
The key to good accuracy is to have a bullet that is just slightly oversized for the bore and cylinder throats. Ideally your throats are the same or slightly larger than your barrel. If the barrel is larger, then you'd want to use a soft bullet in the hope that it would "bump up" or obturate under pressure to fill the barrel after existing the cylinder throat. Ideally you wouldn't want to rely solely on obturation through.
Your bullets should be .001 over the largest measurement, which *should* be your throats.