For sizing my wheelgun brass I use a Redding titanium carbide die. It's a beautiful die, and even dirty brass cycles through it like butter. There are of course pros and cons to using carbide ring dies. The primary con is that they can't provide a tapered sizing; they size the entire length of the brass down to one unnecessarily small diameter, removing even the tiniest amount of taper and unnecessarily working the brass... Not long ago I decided I didn't want to work my brass so much, so I started only sizing as much as necessary for bullet grip; essentially "neck" sizing my 45 Colt cases. I like the results. The positive aspects are pretty self evident, and thus far I haven't encountered any downside.
Of course there's never much new under the sun when it comes to reloading and I was not at all surprised to learn from a little poking around that I wasn't the first one to think of doing this. And I found this piece that does a reasonable job of describing the die dilemma: http://www.riflemagazine.com/magazin...d=460&magid=33
Is anybody else here neck sizing their 'straight wall' brass? Have any negative implications come to light?