The Green Lightning (Heavy Field Short Magnum) 12 Gauge is one of the most famous hunting slugs ever. You will be surprised by the tremendous knockdown power and penetration. This 546 Grain Slug is the best combination of power and accuracy you can get.Brenneke Green Lightning 12 Gauge 2.75" 546 Grain Slug5 Rounds Per Box2.75" Shell LengthWhether it's a smooth barrel or a rifled barrel this 12 Gauge slug is optimized for excellent performance. Order your 12 Gauge ammo online today!Need some cleaning supplies for your firearms? Click here!Want to check out our full selection of 12 Gauge shotshells? Click here!