Barrel threading

[redbullitt]

I think this is the right place for this... Please move if necessary.

I have two lever rifles I would like to suppress, and I need to figure out what threading to use on the suppressors and the barrels. One is a marlin 45/70 guide gun (Approximately .458 bore, .775 OD barrel). It will be used for subs and full power loads. The other rifle is a Rossi 92 in 357 mag ( Approximately .358 bore, .645 OD barrel) used for subs and full power loads.

I want to keep the barrels thick enough to do their job, but I would like to get enough shoulder for the suppressor to butt up against.

Planning to use a bowers VERS 50 and a Liberty Mystic X.

What do you guys think?

 

[4v50 Gary]

Why don't you consult the suppressor manufacturer that you contemplate purchasing it from? Ask them what diameter & thread they recommend?

 

[redbullitt]

Haven't heard back yet... but I sent a couple of emails this morning.
Plenty of time on the form 4 still lol, so no big rush. Lucky for me it is very easy to swap mounting adapters for both suppressors if I need to.

I have seen that most go with 1/2 28 on the 357 lever rifles, but it has been much harder to find info on the 45/70. 458 socom shooters usually wind up with 5/8 and 11/16 threads, so I assume they will come back with something along those lines.

 

[Zeke/PA]

Careful with the threads!
I've heard of some suppressors being left hand while we still have to deal with a metric offering or two.
I also think it best to get the manufacturers info.

 

[Aaron Baker]

My .458 SOCOM is threaded 5/8-24. (Some have been threaded 5/8-32 to avoid idiots putting 30 caliber accessories on by accident.) I have a .45 can that I've used on it--the 5/8 threading seems to work well. I think Bowers offers several different thread options. I don't see any reason to go anywhere crazy with it. 5/8-24 should be fine.

Aaron

 

[redbullitt]

Thanks for the input! Bowers told me the 5/8 would be the most common way to do it. Glad they have adapters for the suppressor threading; it makes everything much easier!

Now I just have to find someone to do it... Any favorites places to go for barrel threading?

 

[pjeski]

Adco

https://www.adcofirearms.com/shopservices/shop_qnew.cfm?code=Barrel Threading

 

[Zeke/PA]

Thanks for the input! Bowers told me the 5/8 would be the most common way to do it. Glad they have adapters for the suppressor threading; it makes everything much easier!

Now I just have to find someone to do it... Any favorites places to go for barrel threading?

A friend that's a good Machinist/Toolmaker with the ability to perform 'government jobs" is the easy way out.

 

[HRnightmare]

I have a guy local that does it but I have heard great things about ADCO.

Gemtech does them but they take 3-4 months to turn around. If you sent it off right now you would probably be good. My form 4 came back yesterday, it was submitted OCT 24th

USMACHINEGUN does it for about $75 and return shipping. I have heard good things. I personally have dealt with the owner via phone and email and do not think I will do business with him because of his attitude and seemingly unwillingness to provide information I requested. He does say turnaround is about a week. I have heard good things about his products.

If you google barrel threading like 10 companies come up. Most I have never heard of though.

 

[redbullitt]

Yeah that is the same thing I thought when I looked. The only one I knew was ADCO, and supposedly they do a good job. I am not much of a Gemtech guy, so unless I can find someone decent local or semi local ADCO may be the way to go.

Thanks

 

[jmorris]

I would wait until you know what you are getting. There are some "standards" but there is a lot of other stuff out there too.

like 9mm AR's "standard" thread is 1/2-36 but 1/2-28 is out there and 1/2-32 is not unheard of. Would not be a good idea to have one done then need to change though.

 

[HRnightmare]

Yeah that is the same thing I thought when I looked. The only one I knew was ADCO, and supposedly they do a good job. I am not much of a Gemtech guy, so unless I can find someone decent local or semi local ADCO may be the way to go.

Call and email local gunsmiths and gun shops. They may know someone and it might not even be a firearms place. I initally was told by this forum to go to trophy shops. I went to a ton and no one could do it. Then one said he could, he had an old fashioned by hand machine. He dug one letter into it, called me and told me he couldn't do it. My first SBR no forever has a very small and random "D" on the side of the mag well because of this clown. He swore up and down he knew what to do and knew all the NFA requirements. turns out his engraver was not going to be deep enough anyway. He suggested welding a plate with my information to the side of the mag well.


I was searching for a local place to engrave lowers and thread barrels. No one in my area had any idea, one day someone told me to go to a small building with no markings or signs. It is a little 4 man shop that laser and etch engraves parts and designs and creates upgrade parts for Ford Mustangs and Rousch directly. I NEVER had any idea. Turns out he also does the engraving for a local company that produces suppressors who was right across the street. Again, had NO idea. The suppressor guy ended up being the guy that threads my barrels and the car parts guy does all my SBR engraving.

What was soo funny was NO one in the Class 3 game in the area had ANY idea who did this service local. Even though looking back at it now, they sat across from each other for many many gun shows. When I asked the guy who threaded my barrels he knew all about the other Class III dealer and said he had tried to partner with him previously. The one who "didn't know" this guy existed did not want to reveal that he had local competition.

 

[pjeski]

Call and email local gunsmiths and gun shops. They may know someone and it might not even be a firearms place. I initally was told by this forum to go to trophy shops. I went to a ton and no one could do it. Then one said he could, he had an old fashioned by hand machine. He dug one letter into it, called me and told me he couldn't do it. My first SBR no forever has a very small and random "D" on the side of the mag well because of this clown. He swore up and down he knew what to do and knew all the NFA requirements. turns out his engraver was not going to be deep enough anyway. He suggested welding a plate with my information to the side of the mag well.


I was searching for a local place to engrave lowers and thread barrels. No one in my area had any idea, one day someone told me to go to a small building with no markings or signs. It is a little 4 man shop that laser and etch engraves parts and designs and creates upgrade parts for Ford Mustangs and Rousch directly. I NEVER had any idea. Turns out he also does the engraving for a local company that produces suppressors who was right across the street. Again, had NO idea. The suppressor guy ended up being the guy that threads my barrels and the car parts guy does all my SBR engraving.

What was soo funny was NO one in the Class 3 game in the area had ANY idea who did this service local. Even though looking back at it now, they sat across from each other for many many gun shows. When I asked the guy who threaded my barrels he knew all about the other Class III dealer and said he had tried to partner with him previously. The one who "didn't know" this guy existed did not want to reveal that he had local competition.

You meant to post in the engraving thread, not the threading thread. Right?

 

[HRnightmare]

You meant to post in the engraving thread, not the threading thread. Right?

Nope, I discussed both threading and engraving.