Yep. (Except the bit about soft pistol bullets leading if pushed too fast. It's all about fit. In fact some of the worst leading I ever dealt with in revolvers and 1911's was with sinfully hard bullets- bullets that fit like crap.)
What you say about sizing is very true, hence my statement about being sized to fit your revolver throats. My experience with soft lead swaged bullets, which are rarely sized correctly (for my revolvers anyway) and trying to push them too fast does cause a leading problem in my guns. I quit using them years ago and shoot nothing but cast most of the time. Usually cast with a BHN of 11 to 12, and sized to fit the throats of my revolvers.
