Rethread barrel for suppressor
- Thread starter AKDAVED
- Start date
Yes, that works. The minor diameter of a 5/8 thread is .575, and the major diameter of a 9/16 thread is .562.
Yes.
He is saying the larger thread will be completely removed, and have a little material to spare while still meeting the major diameter numbers for the smaller thread.
I see that now that you pointed out out.
Insert image of Homer Simpson backing through the bush...
Thanks. More info. I am using a SiCo can with the ASR mount on the break. The can will fit my 35 whelen and 300's. One of my guns was threaded for a break with 5/8-28 threads and the SiCo break is 5/8-24. That barrel is too thin to have that large of thread diameter and hold a can, so I will need to cut it down. SiCo breaks are also in 9/16-24 hence the request to just cut new threads vs cutting the barrel and starting over.
You can turn it down to 9/16x24 , turn to 1/2x28 and use a 5/8x24 thread adapter with a .750" shoulder or have the shoulder turned back and pick up the threads and have about 1.25" of 5/8x24 threads and permanently attach a thread protector leaving about .6-.625 of exposed threads. A concentric shoulder can be turned on the protector and have the protector blended to the barrel. A few ways to skin the cat.
Will cutting and threading 1/2x28 with a 5/8 adapter with blended shoulder thin the barrel to much vs just threading 9/16x24 with shoulder?
6.5 and 30/06
To do a blended shoulder you have to keep it all 5/8x24. Going with 1/2x28 to 5/8 adapter is fine for 6.5 or 30 cal, I do it all the time for hunting rifles; I just do not undercut the threads because the adapter I use is recessed.
It may not be suave but it solves the problem.
That looks nice!
I’m not well versed on the machining so that’s why I’m asking a lot of questions.
My barrel is .670 at 16.5 inches and .646 at 19 inches.Looking at cutting 17-18 inches.
I just saw were this guy threaded his thin barrel 5/8x24 longer than normal and added a 5/8 threaded peice and machined it to profile.
The advise is much appreciated!
I’m not well versed on the machining so that’s why I’m asking a lot of questions.
My barrel is .670 at 16.5 inches and .646 at 19 inches.Looking at cutting 17-18 inches.
I just saw were this guy threaded his thin barrel 5/8x24 longer than normal and added a 5/8 threaded peice and machined it to profile.
The advise is much appreciated!
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Yes, that's the other process I had mentioned; which is a little more work. If it's worth it to you because you prefer the looks of it then that's what you should go with. Both methods get the job done.
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