user: Question: For which .308 winchester cartridge type is the 300 m group ( moa ) 0.51
Columns: ['.308 Winchester cartridge type', '100 m group (mm)', '100 m group ( MOA )', '300 m group (mm)', '300 m group ( MOA )']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['RUAG Swiss P Target 168 gr HP-BT', '13', '0.45', '48', '0.55']
SQL:

assistant: SELECT ".308 Winchester cartridge type" FROM "Table" WHERE "300 m group ( MOA )" = '0.51';