In testing for big power with my .30 maverick it has come apparent that big long slugs is what it takes to make the most energy. And obviously the problem with that is they don't fit in a factory magazine. Simple solution is a single shot loader which I am using for my 80 grain slugs. However in my thinking it would seem that a small gravity fed magazine may be ideal for big slugs. In my opinion you would only "need" perhaps a 5 shot magazine for hunting and quick follow up shots if necessary. I would think something could be 3d printed or machined from Delrin to hold the longer slugs being made for the high power guys. Being gravity fed should make it incredibly simple and in theory, problem free. Anyone want to take a shot with a design?