I turn my feed bags around horizontally and pretend they are deer as they are a little smaller than a coffee bag.

The feed store may have some smaller bags which can become groundhogs, coyotes, etc.  Endless ideas.

Dave, do you leave yours out full time?  Any protection from the elements?

Yes, I leave 'em out year around, and broom the snow off in winter for use. It's so cheap and easy to "re-sock" with a new bag when the old one gets worn out. But I'm short on storage space and if it were as simply as picking it up and tossing it under a shed roof, or into a garage, I likely would. Esp. if I didn't shoot every day. d

Elbow--Craig, your bags are in the mail, have fun--bob

I have used burlap bags for many years now. I stuffed them with waste polester fiber from when we still had texile mills in the south. When the bag wears out I stuff the fill in a new one. Cotton when they bail a field also works well, but so does plastic sheeting and plastic bags.

I get feed sack from my local feed mill new and unused for $1 each. I drive a truck and deliver to grocery stores so I get the shrink wrap that they wrap around the pallets of groceries to stuff them with.
Some folks also use scraps of screen like from a screen porch or window to stuff with as well.

I'm just getting ready to try this. I have a black lab that seems to supply me with plenty of 50# dog food bags made of plastic weave. i am filling one with plastic bags and then instead of tieing it off there i'm going to start another dog food bag over the open end making it 2 ply. oh yea i turn the dog food bags inside out they are nice and white and you don't have to shoot at the cute little puppy on the other side lol

Nylon window screening makes a great filler. I have a bag target stuffed with that and it has lasted forever. I replaced the cover years ago. Mine is half buried in the snow right now. It has been outside for years. Nylon window screening isn't that expensive and you might be able to get it free from someone who repairs screens.

Dave