It will work well some years, some years you will lose money on the cattle and the hay. You will be buying steers when they are the highest and selling them when they are the cheapest. You will be at the mercy of the total hay supply as far as at what price you can sell your hay. Some people who do this sell their steer in August before the price breaks and then buy a fresh supply in October-December, at whatever point the price is cheaper. WIth this, they sell part of their hay and feed part of their hay. Or if you don't buy fall steers, you will have alot of stockpiled grass (if it is fescue) for the early spring when you buy your spring steers. Overall, with steers, I think you are better off most years to buy in Oct-Dec and sell in July-Aug.