The 12 Gauge Kurtz Magnum gives the power of a full sized, 1,400 fps one ounce slug but gives you up to 50% more ammunition capacity. For instance, a stock Remington 870 will now hold six (6) rounds in the magazine instead of the normal four. The pure lead slug insures good expansion over a range of velocities. At a muzzle velocity of over +1,300 fps our 1&1/8 ounce (500 grain projectile being pushed at over 1,300 fps is similar to the .45-70 Government round issued to infantrymen during the 1800’s) delivers the same energy as the full sized rounds, but the Short Magnums give you up to 50% more ammunition capacity. When using in a pump action shotgun you must cycle the weapon briskly, almost like you are angry with it. Ammo purchasers are responsible for use and compliance with all federal, state and local laws. Free shipping on ammo orders over $250. Ammo is shipped by UPS Ground Only.