For everyday practice, I've got an oldwoven plastic "burlap" bow target that came stuffed full of cotton ball-looking stuff which stops the arrows from my Parker Buck Buster (150#). It weighs about 25#. I'll be stuffing the innards into another burlap bag soon as the outer covering is about shot up.

While it's not a target, I needed something to shoot into after getting back to the truck from deer hunting. I took an empty Old Roy 25# dog food sack and stuffed itfull of old clothes, etc. and wrappedthat tight with duck tape. I just pop it out of the truck when I get back and shoot a practice arrow into it as a way of uncocking my crossbow. I got the idea off of this forum. It's got me through 30+ trips to the deer woods this year and is good for at least one more year before I'll need another Old Roy sack. By-the-way, this first year of using the crossbow brought five deer home, one a nice eight-pointer, successfully shooting deer from 15 to 35 yards. Alas, I've onlytaken the recurve out one time to date.