Been a few posts on this. I don't have a piece available now, but I know it was almost 1/8" shorter than my Starline .45-70. I save it for long wide leads that don't fit well, but you cannot use an FCD die on it. I load the long leads with my Lee Classic Loader which does a taper crimp. If you search back a bit, you might find the one I measured the brass and posted on. Sorry, cannot remember. 8(