I can shoot 15 yards in basement.....and yes its fully finshed. I stood up a 4X8 sheet of 3/4" plywood up and then have a large foam block (its about 3' high and 2' wide. My kids shoot all the time......one 7 and one 9 years old and they've shot down there for a couple years. Its good practice, conditioning, and fabulous for tuning.

Good Luck!