If you put blackpowder and smokeless powder side by side and burn them the blackpowder burns much faster. However blackpowder has less recoil than smokeless. I called Remington who said there low recoil shotgun shells such as these http://www.brownells.com/ammunition...-sts-target-shotgun-ammunition-prod43449.aspx have the same shot weight and velocity as there regular shotgun shells they just use a slower burning powder. Can someone explain this to me as I don't get it.