JGS reamer. .4720 at the .200 line, .4620 at the shoulder, .104 FB, .2720 neck
Harrels D4 FL bushing die will work great with the above spec'd reamer with Lapua 6BR brass. Bushing size .266 or .267. Forster Micrometer seater has served me well for several thousand rounds.
trophyhunter, last...