Size of muzzle: R2 2 5 B0 OB3 12 3 7 B2 R3L 0 4 B4 OB1 10 R2L 6 B0.5 D2 J1 OB4 13 3.5 8 B3 R4 R0 R1L 4L D1 OB2 11 R3 6L B1 BT D3 R3.5 J2 9 B3.5 1 R1