You don't need to bore anything. Just replace the gas plug with the SCHUSTER HIGH VOLUME M1 GAS PLUG.LTUME1978 wrote: ↑Wed Aug 29, 2018 7:18 amNJ_Expat,
Thank you for the reply and information. I doubt I would run hunting ammo through it. I have some old 30-06 brass around and Starline tells me that they will start making 30-06 brass soon. 308 ammo is less expensive and more common. Where did you get the information about boring out the gas block?
The added volume it provides reduces or eliminates the sharp pressure spike modern ammo causes which has been known to bend the op rod.