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