I like when people say it was designed for black powder. It makes it sound like smokeless powder was on the market back then. Black powder was all there was, so that`s what they used. I have over a 1000 rounds down the tube of my 1873 TD & it`s as accurate today as it was the 1st time I shot it, & it`s always been smokeless & if you pay attention you won`t double charge.