Trapping. When SHTF there will be a lot of dogs and other scavengers like Raccoons, Cats, and so forth. Not to mention squirrels and rabbits. Let the hunters tramp around the big game areas. Walk your trapline once a day and size it up or down to where it’s meeting your needs but not overloading your ability to process and store the results. Basically it’s hunting on autopilot. Like hunting, you need to practice to acquire and maintain the skills.
There’s a reason strong spices were very valuable back in the day; a lot of meat is not all that palatable. Stockpile your favorite spices. Grow garlic, onions, and tomatoes. Can and dry as appropriate.
Traps and the necessary support gear for preparing / maintaining them are not cheap, but for the price of a good rifle you can get a good start. The size of your full kit will depend on how many mouths you’ll be feeding.
And by the way, remember that a garden is a deer magnet.