Manufacturer’s Description | This brand-new high-BC 6mm bullet is similar to previous DTAC bullets with respect to its overall form, but has incorporated a very important design change: it has a rebated boattail. Specifically, the RBT design slows down barrel throat erosion. This erosion results from the “flame-cutting” effect of burning propellant gases, which is intensified by a conventional boattail design. Along with extending the accurate life of a new barrel, this also means that our 115 RBT will perform better in a rifle that’s already suffering from throat erosion. |