user: Question: What is the length of the gun that has a shoulder measurement of 12.18 (.480)?
Columns: ['Name', 'Bullet', 'Length', 'Base', 'Shoulder', 'Neck']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['6.5 x 50 SR Arisaka', '6.705 (.264)', '50.39 (1.984)', '11.35 (.447)', '10.59 (.417)', '7.34 (.289)']
SQL:

assistant: SELECT "Length" FROM "Table" WHERE "Shoulder" = '12.18 (.480)';