I'm looking for some source material for specific rifling questions. I want to have some barrels custom made and am interested in the depth of rifling for both round ball and for sabots. Additionally I'm interested in the width and number of groves for each. These will be 12 bore barrels. I think I can come up with some twist info. Right now I'm leaning towards a 1 in 34 for sabots and a 1 in 60 for round ball. Any comments greatly appreciated. Come on you guys with the 12 bore rifles, help me decide what is required to get these things to shoot. Thanks in advance,
Steve
