I bought a lot of "home" grinders that failed pretty quickly. Then I bought one from LEM (
www.lemproducts.com). Lots of deer and hogs through that machine w/o a hiccup. It's not cheap but will save money in the long run (not to mention time!)
I have best luck vacuum packing ground bulk and patties if they are first frozen then vacuum packed.
Consider getting a cuber too. Lots you can do w cube steaks from "lesser cuts".
Good luck processing you own. Hope you get LOT'S of practice this year