this is an (as yet) unfinished helixal magazine made to illustrate an idea. to anybody who I've sent this link to, the concept is that there is a spiral-shaped groove inside the magazine body which the follower tracks with one (or more) teeth. the spiral bit off to the left of the model is this track, and the follower here has a (single) tooth on it.
the rear cover of the magazine has not been modeled. all dimensions are rough- I figured on about 1" for a 12 ga shell diameter, but I know it's smaller than that.
if you understand what I'm trying to get across here, and you do build one of these, please share pictures with me!