02-09-2012, 02:36 PM
BHW barrels are chambered in .264 LBC and they, for whatever reason, have a type 1 chamber and a type 2 chamber. Type 1 uses the 7.62x39 bolt and type 2 uses a Grendel bolt. I bought both bolts to see the difference and the 7.62x39 bolt would not lock into the battery, so I ordered an AA bolt and it is correctly head spaced/recessed and functions great. BTW I am not bashing BHW barrels at all, as I really love mine and I'm getting excellent accuracy and have zero function problems with all types of factory ammo. I just recently got my dies and am just starting to reload for it, so I look forward to my findings and results.