Bryan already answered this in the piece that MT Rifleman was good enough to bring forward, but the Berger's now labled as "Hunting" are precisely the same Berger's you've been buying all along. The new, thicker jacket was a move to resolve some issues that are more specific to target shooters shooting longer strings of fire. The solution, as Bryan described, was to make the jackets slightly thicker through the bearing surface area.
Thick jackets are harder to draw concentrically than are thin jackets, and that's just a fact of life. It's also exactly why SMKs jackets are thinner than their GKs, and why J-4 has always gone with a very thin jacket; they're easier to get consistent accuracy. Walt and Eric were very much aware of this when the decision was made to thicken the jackets for those bullets dedicated to Target use. As such, the thicker jackets are held to the same tolerances for concentircity as are the thinner jackets, despite the fact that it's a real pain in the butt to do so. They should be applauded for that, 'cause it's not an easy feat. Bottom line is, if there's any difference in how the Target/Hunting bullets are shooting, it's probably due to something else in the mix, or simply the variation we normally see from one lot of bullets to the next.
Kevin Thomas
Lapua USA