MagSafe ammo was designed with the concept of magnum performance with safety. The core is made of #2 or #3 shotgun lead pellets, stacked by hand, in specific patterns, and stabilized by a custom blend of epoxy resins. Bullets can be designed for deeper penetration, wider wound channel, some even to break apart in sheetrock walls. The use of larger pellets definitely reduce the ricochet hazard, and because of its light weight, bullets are much faster with less recoil. Swat loads: safest for home defense. Low recoil and wall penetration. Massive kinetic energy dump.