I like cast bullets .001" to .002" larger than the rifle's groove diameter. Make sure they chamber easily and that a bullet can shove into a fired case's mouth - especially with jacketed bullets.
WW usually casts quite large compared with softer alloys. CDN wheelweight also have higher antimony content than US weights - usually, but times change.
Apparently solid tin (Sn?) WW are showing up somewhere - heard that. I want some.
-------------------- Daryl
"a gun without hammers is like a Spaniel without ears" King George V