Ok I just want to know why you would use 3 inch shells in your shotgun. Whether its buckshot, or slugs in a tactical or even hunting situation. What is your choice and why? Because when I do comparisons. A 1oz rifled slug fired from a 2 3/4 inch shell, has a slightly faster muzzle velocity than a 1 1/4oz rifled slug out of a 3 inch shell. I realize the second one is a quarter of an oz heavier, but the energy is only 591 foot pounds more. Is that really worth the difference in price and recoil, when a 1 oz slug fired from a 2 3/4 inch shell with 2090 foot pounds of energy at 20 yards will do the job just as good? Am I missing something that would explain why a 3 inch shell would do any better than a 2 3/4 inch within 20-30 yards? BTW, the shells I'm comparing are Federal Power-Shok rifled slugs Wanna kill these ads? We can help!