Browning, 300 WSM A-Bolt All Hunting Rifles >>> Hunting Rifles by Browning More details and ordering info. Imagine combining the speed of a wide receiver with the bone-crunching power of a middle linebacker. That's the best way to describe the new 300 Winchester Short Magnum (WSM). The best comparison to the 300 WSM, ballistically speaking, is the popular 300 Win. Mag. Both cartridges produce similar muzzle velocities, down range velocities, energy and trajectory. Depending on bullet weight and type, the new 300 WSM actually exceeds the ballistics of the 300 Win. Mag. User input on 300 WSM A-Bolt by Browning: Be the first to submit input on this product Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines