I have been looking for a good wile for a 311-41 with little luck , so I guess I should order a copy that will cast what I want . That's when it started getting complicated mainly because I don't know what I need , I have not done a chamber cast , or slugged the bore . A member hear sent me a few plain base 311-41 stile to play with sized at 311 and they slip into a fired case easily enough and chamber fine if crimped to the crimp grove . I suppose I will split a case down the side of the neck to find the rifling . I have a older Sears model 54 and a win 94 from the same time period both rifles have the same twist . From my research I believe the best results come from the fatter the better as long as they chamber , but the idea of bore riding confuses me even more . Then there is the mold cutters like the NOE 311-041 or NOE 311-165 RF RD old style or new stile for Marlins / Saeco # 316 / RCBS 30-150 FN ,or 170 RNFP ,/ Arsenal 311-170 RF , then on to lee 150/170 . I would like to get them going a little faster so gas check is probably in the mix as well . Now I'm really confused . By now you guys probably figured out I don't know what I'm doing haha hey .