Greetings LiveTrap and GeorgiaPeachie: my father raised rabbits in OK near Bristow. LT, your idea of free running is great, I would save my .22 ammo for something else...A pellet gun or a BB gun, Bow and Arrow, slingshot, all work fine. Guns are too loud in the SHTF scenario and DRAW ATTENTION, not good.
My dad had rabbits in cages because of the coyotes. He set them up about 2 ft off the ground, had fine mesh wire underneath so if they peed, it would go to the ground. If they pooped, the little pellets would hit the fine mesh and either stay there or roll down into a kind of raingutter catcher. The fine mesh was set up in a 45 degree angle from high in the back to low in the front. The pellets would roll downhill into the raingutter and he would pick up the raingutter and dump the clean and dry pellets into a bushel basket for sale or self use as fertiliser like Georgie said. The best part was, the urine and pellets only stink when they mix. He also helped the females when they had babies. Instead of putting a breeding box in the cage and reducing the total available space, he cut a door in one side and hung the brooding box on the outside of the cage. Mama rabbit was big enough to get out of the box but her babies could not. She could take a much needed break so. He also strung plastic tubing through all the cages and connected little brass fittings with steel balls to the tubing and ran it all together into an old toilet tank. Each of the rabbit cages and a "drinking" brass fitting with a little steel ball and the rabbits could Lick/drink as much as they wanted or needed. The toilet tank was always connected to the water hose and kept the tubing always full. There was more water for the pregnant mothers and their babies, other rabbits used less, there was more room in the cages because of the lack of water bowls, you had less work to fill up all the water bowls AND there was no problem of the rabbits jumping around/spilling the water bowls and having to live without water till they were re-filled. He also saved lots of time in the feeding, he had cut a hole in the cage top, fitted a feeding pipe from the top into the cage which almost reached the feeding bowl which was wired down and could not be turned over just like the water bowls problem. He could walk by, scoop some dry food, pour it into the feeding pipe and fill it up with enough food to last several days. As the rabbits ate, more food would come down and keep the bowl full.
Very little work, little time, clean cages, re-cycling of pellets, always clean water, healthy rabbits and much food. He even sold the furs for good money since they were living in clean cages. (He also used Lysol in their ears to keep them clean and healthy from ear-lice!!) Gary