Bat M has a 1-1/8 tenon vs the usual 1-1/16
Straight 1.25"What's the profile of the barrel?
Not exactly. Cutting the tenon off will not remove all of the chamber.If you are cutting the threaded tenon off, realistically, you are starting at the beginning. Be the same as fitting a new blank.
So, how many of these have you done, Steve? Cutting all of the threads off, even thought there is some of the old chamber left, is about like starting with a fresh blank. It still has to be dialed-in, and how much chamber you have left will determine where you get to dial. The barrel still has to be turned to proper length and threaded. Mostly, having existing chamber that you are going to enter with a reamer is not much different than drilling and pre-boring a 'fresh' blank. A re-chamber , as you suggest, cutting the threaded tenon off, may actually take more time than starting with new. And then there is being sure there's no carbon in the used barrel that will dull your reamer, before you ever put the barrel in the lathe.Straight 1.25"
Not exactly. Cutting the tenon off will not remove all of the chamber.
I think a 6.5 PRC reamer will completely clean up what remains of the existing (6.5 PRC) chamber.
^^^^^Yes, just chop the tenon off and start over.
Bat M has a 1-1/8 tenon vs the usual 1-1/16
So, how many of these have you done, Steve? Cutting all of the threads off, even thought there is some of the old chamber left, is about like starting with a fresh blank. It still has to be dialed-in, and how much chamber you have left will determine where you get to dial. The barrel still has to be turned to proper length and threaded. Mostly, having existing chamber that you are going to enter with a reamer is not much different than drilling and pre-boring a 'fresh' blank. A re-chamber , as you suggest, cutting the threaded tenon off, may actually take more time than starting with new. And then there is being sure there's no carbon in the used barrel that will dull your reamer, before you ever put the barrel in the lathe.
But once you dial in the new throat position, drill and pre-bore for the new chamber the remnants of the original chamber will be gone. It's like others have said, it's (almost) like starting with a clean blank.Not exactly. Cutting the tenon off will not remove all of the chamber.
^^^^^^But once you dial in the new throat position, drill and pre-bore for the new chamber the remnants of the original chamber will be gone. It's like others have said, it's (almost) like starting with a clean blank.