02-05-2018, 01:27 AM
What ric said (and Vascar2 on several occasions!!).
SAAMI is the chamber, not the bolt/chamber combo. A chamber can be cut to space on a 0.125 depth bolt or on a 0.136 bolt.
Most of the - what I would call - good mfrs seem to use the 0.136 bolt so they use the "Type II" bolt face terminology, invented by Satern but nonetheless useful, to let you know that.
Biggest caveat is to make sure your barrel and bolt are matched as to head space dimensions, I personally agree with ric that the combo with 0.136 face is the better choice.
SAAMI is the chamber, not the bolt/chamber combo. A chamber can be cut to space on a 0.125 depth bolt or on a 0.136 bolt.
Most of the - what I would call - good mfrs seem to use the 0.136 bolt so they use the "Type II" bolt face terminology, invented by Satern but nonetheless useful, to let you know that.
Biggest caveat is to make sure your barrel and bolt are matched as to head space dimensions, I personally agree with ric that the combo with 0.136 face is the better choice.
"Down the floor, out the door, Go Brandon Go!!!!!"