To answer your question Mr. Hoy. Hawg Haggen was the first to be spot on with the correct information you require. I would like to add something too it if you don't mind Sir. Those primer pocket cleaner tools are commonly found in two sizes. You need the LARGE one. Being you like those Lee products they make a >Jim Dandy do it all scraper tool.< Which will clean Large and those Small primer pockets. And accomplished both tasks with the same tool. It's a "Handy Dandy" tool to have on your bench.
"Do not follow where the path leads, rather go where there is no path and leave a trail."