A friend (fellow smith) and I have been having a discussion about something today and I thought I would put it out there and ask for your thoughts and comments.
I am not a fan of running a thread adapter with a supressor but I have a few guns that require them. I purchased commercially available adapters for those. Now I find myself in need of another one and decided to make it.
I have a direct thread supressor rated or 300 win mag (AAC 300TM) that I would like to run on my 7mm Mag. Problem is barrel profile will not allow me to thread 5/8 without cutting it much shorter than I am willing. The barrel is currently threaded 7/16 for a muzzle brake. The threads are concentric with the bore (I'm positive because I cut them myself).
My plan is to dial in a piece of 4140, drill, single point internal threads, single point external threads, and knurl a short section all without removing the work piece from the chuck. I contend that the internal and external threads will be concentric to one another so long as the work piece is not moved between operations.
My buddy thinks I need to drill, cut the internal thread, screw it on the barrel, dial it in, then cut external diameter & threads.
I would rather not use his method if I don't have to because I will have to pull my optic so I can get enough through the spindle.
What am I missing here?
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I am not a fan of running a thread adapter with a supressor but I have a few guns that require them. I purchased commercially available adapters for those. Now I find myself in need of another one and decided to make it.
I have a direct thread supressor rated or 300 win mag (AAC 300TM) that I would like to run on my 7mm Mag. Problem is barrel profile will not allow me to thread 5/8 without cutting it much shorter than I am willing. The barrel is currently threaded 7/16 for a muzzle brake. The threads are concentric with the bore (I'm positive because I cut them myself).
My plan is to dial in a piece of 4140, drill, single point internal threads, single point external threads, and knurl a short section all without removing the work piece from the chuck. I contend that the internal and external threads will be concentric to one another so long as the work piece is not moved between operations.
My buddy thinks I need to drill, cut the internal thread, screw it on the barrel, dial it in, then cut external diameter & threads.
I would rather not use his method if I don't have to because I will have to pull my optic so I can get enough through the spindle.
What am I missing here?
Sent from my SAMSUNG-SM-T377A using Tapatalk