I'm sure a small percentage of reloaders, mostly new guys, would be interested in such a club. Howerever, reloading is a minor activity, mostly scattered inviduals do it, so you would have to be in a highly populated area to have a chance of getting enough new reloading guys in the same area to make it work. Highly populated areas are cities. Cities have few shooting ranges and few hunting opportunities so that would probably defeat the effort before it begins.
Some of our better gun clubs have the kind of facilities and new guy helpers you suggest tho.