For Steven Ashe, the Reloading Bench website has an interesting piece of history on the grand 30 06. (Biscuit salutes.) But it doesn't address powder development or discrepancies in production runs shipped to depots over the decades. Yes, I think I heard somewhere along the line that pre-1950 springfield ball ammo was hot. Stories start for a reason. But I bet it was manufacturing variance. I would stick to modern rounds in modern rilfes, though. We have better bullets and powders these days. Maybe someone else is a stronger history buff on the .06.

As a supply officer attached to the 3rd Bn 9th Marines in 1975, my battalion was the first to ship without 03 springfield extractors and ejectors in our parts inventory. Tradition dies hard.