Berger Bullets was founded on the innovation of precision bullet manufacturing. To achieve precision with a projectile that’s spinning at over 100,000 RPM, mass balance is essential. Mass balance is driven by the concentricity of the jacket. In other words, the copper jacket needs to be the same thickness all the way around, so the heavy lead core is centered on the spin axis. Anywhere the jacket is thicker or thinner introduces a mass imbalance, that creates dispersion right out of the muzzle. For this reason, Berger has established the highest standard in the industry for jacket concentricity: 0.0003” is the max tolerance for run out (difference between thickest and thinnest part of the jacket). With such well balanced jackets, Berger is able to make bullets that are precise enough to win at every level of competition from PRS and F-class to ELR and Benchrest.