isnt a M1A .308
We would recommend 168 grain Federal Match or Black Hills ammunition for the best accuracy.
You can use .308 factory ammunition made to SAAMI spec.
You can also use 7.62 x 51 military surplus ammunition with the NATO stamp on it.
You can use anywhere from 147-180 grain ammunition – nothing over 180 grain.
Thank you for your interest in Springfield.
Enjoy the day!
Best regards,
Patti Boyer
Customer Service Rep.
Springfield Inc.
800-680-6866, Ext. 8924
Email: patti@springfield-armory.com