Shooting for score is more practical than shooting for groups - your zero must be precise! While standard round bullseye targets serve well, I sometimes long for some variety. Here is a "Swiss B4" inspired silhouette, intended for ten shots. Shoot it at 100 yards with a scope, or at 50 with iron sights. While large enough to be practical within the limitations of cast bullets, the scoring has been tweaked to reward careful holding.
You can find a printable .pdf version here. I like to take the file to Staples on a thumb drive, and print it on very heavy 8 1/2" X 11" tan paper. Have fun!