Hey, whatever works for the one doing it! I'm only feeding 7 birds at the moment, compared to God knows how many you are (bet you don't even know), so my 150# lasts me a good while.you will laugh when I tell you how I started doing it since I am not to lift more than 50lbs. I use a snow sled, drop the feed off the top of the stack on it and drag it through the gravel to the coops, lay the trash can sideways slide the entire sled into the trash can and tilt lift the trash can back upright and then just open the feed and let it in the bag.... Hey a girls gotta do what she has to do! they wont bag at 50lbs! only 100s