Light shooting and effective in the field. Mossberg International small-gauge autoloaders are known for being light-shooting and effective in the field. Two hunting models have been added to the SA Series, available chambered in .410 bore for the first time. Some feature of the SA-410 Autoloading Series include Smooth-cycling gas-operated system; Lightweight, easy swinging with low recoil; Flexibility of interchangeable chokes. Advancements using tungsten shot have resulted in tight, effective patterns for turkey and wingshooting in the .410 platform. Tungsten shot is 56 Percent denser by weight than lead, and significantly higher pellet counts bring more penetration to greater distances in the field, and in the skies.