Yes, it can be legal to make a silencer. For everything Form-1, from silencer designs that are easily made, to filing forms with the BATF, to 3D modeling. Remember, you must have an approved BATF Form-1 to make a silencer. All NFA laws apply.
I recently saw a pic of a Trek-T that was cut in half and it looked like there was an insert threaded into the blast baffle
have any of you tried something like this ( A Ti blast baffle with an inconel or other wear resistant Insert) the idea is just to keep the cost down as I've already got lots of Ti bar stock scrap on hand and 1.5" inconel is stupid expensive but a small piece of 1/2-3/4" can be found on ebay for less than $10
partsguy22 wrote:I recently saw a pic of a Trek-T that was cut in half and it looked like there was an insert threaded into the blast baffle
have any of you tried something like this ( A Ti blast baffle with an inconel or other wear resistant Insert) the idea is just to keep the cost down as I've already got lots of Ti bar stock scrap on hand and 1.5" inconel is stupid expensive but a small piece of 1/2-3/4" can be found on ebay for less than $10
Edit: heres the picture
We did a 223 recore with titanium baffles and 17-4PH insert in the first 2 baffles.
Thanks Bender, I'm glad one of the pros have tried this and had the desired results
I'm planning a .30 can that will live on my 6.25" 300BLK and possibly spend some time on a .308. This looks like the most viable solution to blast baffle erosion that I've seen so far
EDIT: Do you think that it would to rocksett the insert into the baffle?
partsguy22 wrote:Thanks Bender, I'm glad one of the pros have tried this and had the desired results
I'm planning a .30 can that will live on my 6.25" 300BLK and possibly spend some time on a .308. This looks like the most viable solution to blast baffle erosion that I've seen so far
EDIT: Do you think that it would to rocksett the insert into the baffle?
In all honesty its not worth the time involved in doing it.
Make the baffle then thread the baffle, then making the itty bitty insert that threads in.
Rocksett won't do the job, you will need to use a roll pin like GT uses on theirs to secure it. We used a ceramic adhesive and it has held strong so far.
Instead of a threaded plug, I'd prefer an applique wafer. Like a 1/32" thick, snap-in grommet/eyelet. Maybe 1/4" deep throat.
The Base of the Throat would flare behind the Mouth, to fit the Cone.
The Darkest Corners of Hell are reserved for those who remain Neutral!-Dante
The Death of One is a Tragedy, a million only a statistic.-Stalin
silencertalk.com/forum/viewtopic.php?f=10&t=135314
Given the thickness of a baffle inversely affects the performance of the baffle I would avoid doing it. Also the weight difference between going with and entire Inconel baffle and a Ti baffle with an insert I would go with the Inconel baffle.
Firearms Engineer for hire on piece work basis.
No job is too expensive :)
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Bendersquint wrote:I wouldnt trust an int fit for this scenario.
What about my flared grommet idea? Each shot would further fire-form to the cone.
A thin overlay should function better than a thick plug. The issue is the erosive resistance to pitting, rather than requiring a full baffle.
Right?
The Darkest Corners of Hell are reserved for those who remain Neutral!-Dante
The Death of One is a Tragedy, a million only a statistic.-Stalin
silencertalk.com/forum/viewtopic.php?f=10&t=135314
I wonder why the Trek-T used a threaded plug instead of circumferential wire weld.
Would have saved weight, material, performance, machining time, etc. Maybe they didn't have a welder? Seems like they could have hired a Contractor to batch weld a gross.
Oh well. Hammers see everything as Nails. You go to work w the tools you have.
The Darkest Corners of Hell are reserved for those who remain Neutral!-Dante
The Death of One is a Tragedy, a million only a statistic.-Stalin
silencertalk.com/forum/viewtopic.php?f=10&t=135314
partsguy22 wrote:I've even thought about welding/hard facing a 17-4 baffle with stellite and then grinding it to dimension with a tool post grinder
I think a grommet it just not strong enough ...or at least I wouldn't trust it
We do lots of stellite hardfacing on various materials at work (mainly low carbon steel--WCB/WCC in ASME speak-- some CF3/CF8 which is 304/316 stainless, and some alloy stuff but that requires inconel buttering which has been a ton of fun) and have found that alloy 21 works better than the more common alloy 6. In our experience 6 will crack while 21 does not...you do give up some hardness with 21 but it is well worth it. YMMV but that's what we use.
That patent is mostly about the 2 piece tube design.
Funny that they got a patient on that as that way of producing silencers has been done in the EU for many years.
Even predating this patent, thing is mostly done by small company's and nobody thought about patenting it.
As happens all the time by small company's that are happy making money on their ideas and product and do not think about it or do not have the money involved in the proces.
