gnoahh,

I am just reporting my results, with MY Lyman mould, in MY rifle.

But have also had some other contrary-to-popular-opinion results with other cast bullets. One was with a .38-55, with the not untypical groove diameter of around .377. Tried different alloys and sizing techniques, but eventually got the best results with using as-cast bullets with a little more pure lead in the alloy--which resulted in a little larger average diameter.

Again, learned that trick from a guy who started his gun-writing profession by really getting into casting bullets, and like some other gun writers made his inroads by testing long-held assumptions.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck