10-16-2012, 04:22 AM
Black hole Weaponry has two types of chambers from what I've read. The type I chamber uses a 7.62X 39 bolt if I remember correctly. The Type II chamber uses a 6.5 Grendel bolt which has a more recessed bolt face. If you have the wrong bolt it can make the chamber to tight (short) and cause chambering problems. If I were you I would call BHW and see if this could be causing your problem with factory ammo.