03-09-2018, 09:15 PM
I looked on the BCA site and all the 18" Grendel uppers have a midlength gas port so it must be simply lower power reloads.
Try upping your reloads to the middle of the range. You are at starting loads with H322 from the Hodgdon site.
Keep the bolt and receiver well lubed while it is breaking in. I use Rem oil spray.
Try upping your reloads to the middle of the range. You are at starting loads with H322 from the Hodgdon site.
Keep the bolt and receiver well lubed while it is breaking in. I use Rem oil spray.