The B-6C target is a repair center for the B-6. The size of this target is 10.5" x 10.5". It is used for 50 yard slow fire with 8, 9 and 10 rings in black. Size of each ring as follows: X ring: 1.695 in. 10 ring: 3.36 in. 9 ring: 5.54 in. 8 ring: 8.00 in. 7 ring: 11.00 in. 6 ring: 14.80 in 5 ring: 19.68 in