currently a 50lb bag of rice at COSTCO is $16, Add an extra $16 to your food budget and in two months you could have prepped 200lbs of rice for a grand total of $64. That's less than 100 rounds of 5.56 at current prices. It will be too late when beans and rice are $200 for 10lb and 5.56 is $100 for 20 rounds.