Winn Dixie, I needed a few cans (5 big dogs!) to tide us over until my husband gets over to FL where a friend with whom my husband does business has some kind of grocery store where we get brand-name dog food cheap. Mine get dry mixed with canned, and with 5 large dogs, I need the really big bags and cases of cans.
Hubby buys the 50lb bags of ‘big dog’ food at the feed store. We are rural though. We also buy the chickens food there. And the cats.
I’ll have to ask him specifics on how much we save. IIRC it’s on the order of 30%-40% over grocery store prices.
If you have a local co-op you might ask there. Or ask around for a ‘feed store’.
Fortunately we only have the one big dog. But she’s an outside dog (with lots of protection from weather) and winter is coming. I save my freezer burned meat to cook in the winter and add to her dry food. She also gets all the au jus from any roasts or crockpot meats in the wintertime too.