Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
For which .308 winchester cartridge type is the 300 m group ( moa ) 0.51

### Inputs:
table_name: table, columns: ['.308 Winchester cartridge type', '100 m group (mm)', '100 m group ( MOA )', '300 m group (mm)', '300 m group ( MOA )']

### Response:
SELECT .308 Winchester cartridge type FROM table WHERE 300 m group ( MOA ) = 0.51