[quote=458 Lott]As much as I've enjoyed Elmer Keiths writings, I think you'll find an LFN style bullet of the same weight will be more accurate and over a broader range of velocities than a Keith SWC. The swc isn't a bad design, but it isn't the best or most refined.
Here's a worthwhile read on the keith swc design and molds
http://www.lasc.us/Fryxell44SWC.htmhttp://www.lasc.us/Fryxell45KeithSWC.htm100% true. It comes down to alignment of the cylinder with the cone and the Keith is just not the best. The nose does not contact the rifling and the little edge can be wiped off making the boolit off center. That edge does nothing at all except make a rounder hole in paper.
I shoot nothing but cast and even make my own molds. I will not make a Keith because a RNFP, WLN or WFN will shoot better.
Let the nose pull the cylinder in line when it hits the cone.
I made a boolit with a nose to match my cone of 11* and shot this group at 200 yards.
My boolit from a .500 JRH shot this at 50 yards when working loads.
The one hole in the top of this can is 5 shots at 100 yards with cast. Yes, you can make them better then store bought.