Migra Ammunition Stack Features Migra s Stack Load technology combines number 2 and number 4 steel shot in a single shell giving hunters a versatile pattern that performs across varying ranges and target sizes without switching loads mid-hunt. The larger number 2 pellets carry energy for longer range shots on geese and larger ducks while the number 4 pellets add pattern density for closer faster targets. Manufactured in small batches Migra shells are built with no fillers ensuring every pellet in the payload contributes to a clean effective pattern. At 1515 feet per second the 1 1/4 ounce payload delivers the velocity waterfowl hunters need for confident ethical shots. This patent pending stacking approach gives hunters an edge in dynamic waterfowl situations where birds may present at different distances within the same flock or pass. The 3 inch shell length is compatible with a wide range of 12 gauge shotguns built for magnum length ammunition. Packed 25 to a box this load is sized for a serious day in the blind without excessive bulk. For duck and goose hunters who want one shell that adapts to changing shot opportunities Migra Stack Load delivers deadly reliable performance. Migra Ammunition Stack Specifications Manufacturer: Migra Ammunitions Gauge: 12 GA Shell Length: 3 Shot Material: Steel Shot Size: 2 and 4 Shot Weight: 1-1/4 oz Muzzle Velocity: 1515 fps Rounds Per Box: 25 Bullet Weight: 1-1/4 oz Available At: GrabAGun