when we were hunting hogs heavy and we would get a bunch at one time, we would grind the meat like hamburger meat. i would make a bunch of hamburger patties and cook them for us for lunches and after school snacks for he kids. i got one of the little plastic hamburger presses example: https://www.google.com/shopping/product/5215897924527347455?q=hamburger+press&bav=on.2,or.&bvm=bv.60444564,d.b2I,pv.xjs.s.en_US.TCt7lX562oI.O&biw=1024&bih=571&tch=3&ech=1&psi=XMfvUpHdE6HG2wXbm4HgDQ.1391445776656.7&wrapid=tlif139144580073431&sa=X&ei=dcfvUryVF4r-2gWR34DYDA&ved=0CG8Q8wIwAA#scoring:tp and it would work good but the patties were small and only fit on the little buns or hawaiian rolls. one day, i was making some hog tubes out of 4 and 6 inch pvc and cut a couple of rings and started using them. spray the ring with cooking spray and scoop a couple of scoops (one 4 oz and one 1.5 oz.) of meat with a ice cream scoop into the ring that was laying on wax paper and press the meat with your fingers into the ring and then lift the ring off. i made greek stuffed burgers by using a smaller ice cream to put some greek seasoned meat in the ring and then put Feta cheese and then another scoop of meat over the cheese.