Weatherby Mark V Accumark Pro Left Hand Tungsten Gray Bolt Action Rifle – 300 Weatherby Magnum – The Accumark Pro now carries all the legendary performance of the Accumark, plus custom features driving it to the next level of performance. A carbon fiber stock provides excellent stiffness and lightweight attributes for the shooter looking for magnum range, but wanting to cut ounces. A perfect combination of accuracy, weight, and aesthetics with Cerakote finish on all metalwork guaranteeing a life of rugged dependability.