Is there such a thing as a mold for Brenneke style slugs? Is there one for Foster style? I have a 20ga that I use for almost everything shotgun related because one can get very creative with loads for shotgun. However, I would like to shoot Brenneke style slugs and have found that they are more expensive than the cheap Winchesters. The Winchesters run VERY well out of the smoothbore 870, but Im pretty sure the Brenneke has better terminal performance ( I know it punches hard targets better as well). Anybody know anything?