The HEVI-Shot Magnum Blend line of shotgun shells takes even HEVI-Shot's top-quality loads to the next level. Delivering an even mix of size 5 6 and 7 shot these shells offer a super-fast launch speed with increased energy and pellet count for an unbeatable cone of lethality at nearly any range. If you are looking for a heavy-duty shotgun shell to help you bag trophy Toms look no further than the HEVI-Shot Magnum Blend line of shotgun shells. These shells come in 10-gauge 12-gauge and 20-gauge sizes and each shot delivers an impressive muzzle velocity of 1200 feet per second.