03-26-2014, 01:14 AM
In this situation I think the variations are a bad thing. I posted a thread asking about a BHW barrel with a type 1 chamber. I was told to use a 7.62X39 bolt. A SAMMI spec Grendel chamber uses a different bolt. A poster in this thread said do not use 7.62X39 bolts this can get very confusing for people and some will look else where.