06-06-2020, 05:22 AM
All of A5's advice is sound.
The ejection pattern is on the verge of under gassed. The dents in your brass are likely from an overly long ejector spring. There are a few threads here explaining how to trim that to tune it for Grendel.
The ejection pattern is on the verge of under gassed. The dents in your brass are likely from an overly long ejector spring. There are a few threads here explaining how to trim that to tune it for Grendel.

