I'm always looking for "new and fun" targets to shoot at. In case some of you aren't aware of this website, I thought I'd pass it along. These are great and you can download them and print them yourself. I like to use "card stock" as it makes 'em a litter stiffer and easier to use, especially in windy conditions.
There's nothing that says they can't be used with "front stuffers". I use them when I'm shooting rimfire - SA and with my Henry lever action rimfire as well as with my BP guns.
The link is:
I personally like the "game" targets as it's good practice for some of the varmints that show up on the farm - i.e. woodchucks, etc.