If your getting failure to feed try putting a radius on the ejector. On larger case heads like the 6.5 Grendel the square edge on the ejector can impede the case head from seating in the face of the bolt and causing a failure to feed. The bullet nose may fail to go from the mag and up the feed ramps stopping prior to completely seating in the chamber. Putting a radius on the edge of the ejector can’t hurt and is worth trying if your having failure to feed.
http://bulletin.accurateshooter.com/2014...artridges/
Here is a thread where a 6.5 Grendel shooter was experiencing failure to feed which might be worth reading.
https://www.ar15.com/forums/AR-15/6-5-Gr...21-722238/
http://bulletin.accurateshooter.com/2014...artridges/
Here is a thread where a 6.5 Grendel shooter was experiencing failure to feed which might be worth reading.
https://www.ar15.com/forums/AR-15/6-5-Gr...21-722238/

