I’ve tested concentricity a bunch. It’s necessity is a bit over blown. Within reason.
I'm suspicious of that.
Laughing. Be suspicious of it all you like. Test it yourself.[/quote]
You think I haven't? Just a few days ago, I tested my 6PPC rounds with less than .0005 runout, against the loads that came with the rifle that had the necks running out .0025, and the bullet .005. Same bullets and powder all from the same boxes. Mine went .147, the others went .656. Shot over windflags as well. All I know is, when someone tells me concentricity doesn't matter, they don't have any idea WTF they are talking about, and anything they are bloviating about isn't worth listening to.
