Search found 370 matches

by yondering
Fri Oct 11, 2019 12:30 am
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

I'm going to get the velocity up a little more with the n310, but I think it's going to be my powder choice for plinking and playing around with. Titegroup has a clear advantage velocity wise where hunting and HD is concerned though. And is reasonably quiet and moreso than the factory ammo. Try Gre...
by yondering
Thu Sep 19, 2019 11:34 pm
Forum: Silencersmithing Forum
Topic: Turning 17-4 (A)
Replies: 27
Views: 2151

Re: Turning 17-4 (A)

The pic doesn't do it justice - it was a beautiful golden straw color with black streaks and bright magenta swarf! And the dang thing kept cutting just fine. Those inserts sure do put up with more abuse than my HSS tooling. https://i.imgur.com/PQifmTG.jpg That's not a good thing. If the part is hea...
by yondering
Fri Sep 13, 2019 9:14 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

I'll be doing some load testing using some fast burning powders so the pressure builds up quickly but should mostly burn out in the first 7 or 8 inches of barrel so it should be even more quiet by the time that I finish the project. Your 9x39 is different than the 358 Herrett of course, but I think...
by yondering
Fri Sep 13, 2019 9:07 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

I didn't cut the rib in my mag. I did use SS mags though. I think regardless of the follower work, you'll have to remove the ribs to get them to work right. If you don't have a mill, just cover shipping and I'll do it for you on a mag or two, it's pretty quick and easy and I don't mind contributing...
by yondering
Wed Sep 11, 2019 10:49 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

Sounds like one of my crazy projects lol. I however pan to do the vintorez'esq build on the AR platform with a ~9" barrel and an pinnned/welded faux suppressor tube with some nagant iron sights welded onto it that will be large enough ID for my 9mm form 1 to fit into. I made myself a "cherry" and c...
by yondering
Wed Sep 11, 2019 10:33 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

Also, I could not get more than 5 rounds in a mag without having to beat the mag into the lower due to swelling out the mag body. I was using ASC brand 7.62x39 magazines. I'm going to try Cproducts next to see if they do any better since they use 400 grade stainless steel bodies on their mags. Thou...
by yondering
Mon Jan 21, 2019 9:35 pm
Forum: Silencersmithing Forum
Topic: Please help settle a debate
Replies: 6
Views: 964

Re: Please help settle a debate

Would the aluminum of a mag-lite be strong enough for a .308"? Not sure what it is made of, but the SOS is 7075. Yes, it is strong enough if you don't get it very hot. I've been using one for a number of years now. As to the argument on effectiveness - well that depends one the baffle design and co...
by yondering
Mon Dec 17, 2018 11:01 pm
Forum: Silencersmithing Forum
Topic: Recommend some carbide tools
Replies: 22
Views: 1318

Re: Recommend some carbide tools

threads were cut with a solid carbide tool. 8) The threads are my biggest worry. An ordinary lay-down style carbide insert threading tool works fine for Ti, nothing to be concerned about there. For the rest of the turning and boring, I really like the polished sharp carbide inserts intended for alu...
by yondering
Tue Oct 16, 2018 2:43 am
Forum: Silencersmithing Forum
Topic: will parkerizing effect threads on suppressor?
Replies: 24
Views: 1459

Re: will parkerizing effect threads on suppressor?

Your averages are meaningless when the numbers can be completely reversed depending on alloy. The intelligent conclusion is that the weights are so close as to be nearly the same, not that "stainless is heavier". That's where people like the OP end up with bad information, because people like you sp...
by yondering
Mon Oct 15, 2018 8:46 pm
Forum: Silencersmithing Forum
Topic: will parkerizing effect threads on suppressor?
Replies: 24
Views: 1459

Re: will parkerizing effect threads on suppressor?

Stainless is 4 pounds heavier per cubic foot; 490 vs. 494 That's the kind of generic statement that spreads false information. 4140 weighs .284 lb/in^3 304 is slightly heavier than 4140 at .289 lb/in^3 440C is slightly lighter than 4140 at .282 lb/in^3 17-4 is even lighter at .280 lb/in^3 All three...
by yondering
Sun Oct 14, 2018 12:14 am
Forum: Silencersmithing Forum
Topic: will parkerizing effect threads on suppressor?
Replies: 24
Views: 1459

Re: will parkerizing effect threads on suppressor?

? Stainless is not heavier than carbon steel (not to the degree that you'd notice without careful measurements anyway, depending on alloy). Who told you that? Or do you just mean that you'd need to make parts thicker if you used something like 304 stainless? Parkerizing won't have any effect on your...
by yondering
Fri Sep 21, 2018 1:12 am
Forum: Silencersmithing Forum
Topic: is there such as a thing as too big?
Replies: 13
Views: 1799

Re: is there such as a thing as too big?

I could easily clip it with the mill. Im assuming by clip, you mean cut the hole slighly elongated to one side? That's not all of what a good baffle clip really is though; typically you want some material moved or removed on one side along the bullet path, not just off to the side. The point is to ...
by yondering
Tue Sep 18, 2018 11:30 pm
Forum: Silencersmithing Forum
Topic: is there such as a thing as too big?
Replies: 13
Views: 1799

Re: is there such as a thing as too big?

You're thinking of something basically the size of a Liberty Mystic X. I have one, and it's quieter on all my 22 LR guns than my Outback II, which is already way (WAY) quieter than the GM22. Go for it, but IMO you might as well make it a 9mm can while you're at it. With that much volume and length, ...
by yondering
Mon Sep 10, 2018 8:59 pm
Forum: Silencersmithing Forum
Topic: action noise and suppressor hosts
Replies: 48
Views: 3912

Re: action noise and suppressor hosts

https://www.materialsciencescorp.com/products/quiet-steel Interesting. Might be able to build stamped receivers like this. I don't how you would machine it and retain the properties. Some method of covering a receiver to create a similar effect could work too, similar to spray on sound deadening ma...
by yondering
Sun Sep 09, 2018 9:38 pm
Forum: Silencersmithing Forum
Topic: action noise and suppressor hosts
Replies: 48
Views: 3912

Re: action noise and suppressor hosts

I don't know if it's commerically available in small quantities, but the concept could be applied with a bit of engineering.
by yondering
Sun Sep 09, 2018 2:03 am
Forum: Silencersmithing Forum
Topic: action noise and suppressor hosts
Replies: 48
Views: 3912

Re: action noise and suppressor hosts

Along the lines of quieting action noise - there is an industrial product in the automotive industry called "quiet steel". It's a laminate sheet metal that's engineered to be acoustically dead; it doesn't ring or clank when struck or dropped, but instead has a very muted flat "thud" sound. I'd like ...
by yondering
Sat Sep 08, 2018 4:33 am
Forum: Silencersmithing Forum
Topic: Selling a Lathe
Replies: 10
Views: 3149

Re: Selling a Lathe

Not many people can go through a machine or find someone local that can grind the ways.Even fewer have the money to do the job. I doubt you have my experience in the shop or on building NFA but these machines are just fine when you have more skill than attitude. CL retired 02/07 machinist/ Master g...
by yondering
Sat Sep 01, 2018 8:33 pm
Forum: Silencersmithing Forum
Topic: action noise and suppressor hosts
Replies: 48
Views: 3912

Re: action noise and suppressor hosts

I'm happy to participate in a technical discussion about what can be done, and I think it's certainly worth of consideration. But that wasn't the question asked here. I thought it was obvious enough to be implied. I thought it was pretty obvious too, since that discussion was already happening. On ...
by yondering
Sat Sep 01, 2018 5:10 am
Forum: Silencersmithing Forum
Topic: action noise and suppressor hosts
Replies: 48
Views: 3912

Re: action noise and suppressor hosts

fishman and ECCO, if you're not interested in a discussion on reducing action noise, why are you participating in the thread? Don't assume your own preferences apply to everybody else, or even "most people". There's no value in bringing those comments into the discussion; pursuing mediocrity or thin...
by yondering
Sat Sep 01, 2018 4:50 am
Forum: Silencersmithing Forum
Topic: Barrel threading
Replies: 9
Views: 1222

Re: Barrel threading

Perhaps the question was a little obtuse and required too much reading. Has anybody measured changes in muzzle bore/rifling diameter after threading? These two articles are intimating it can happen under certain conditions due to changes in manufacturing induced barrel stresses brought about by rem...
by yondering
Sun Jul 29, 2018 4:43 am
Forum: Silencersmithing Forum
Topic: DIY silencer finish options
Replies: 17
Views: 2084

Re: DIY silencer finish options

I'm working on a titanium F1 can myself right now. It'll be bead blasted (not abrasive blasted); IMO Ti looks best either raw machined or bead blasted and aged, depending on the application. It does turn darker over a few weeks after blasting.
by yondering
Thu Jul 12, 2018 2:33 am
Forum: Silencersmithing Forum
Topic: increasing vs decreasing space between cones
Replies: 26
Views: 4336

Re: increasing vs decreasing space between cones

Lots of people (me included) have used variable length spacers in their cone baffle form 1 cans. I can (and plan to...just finished it) reverse my stack from the traditional (and industrial standard) large to small and see what happens. It is on a 22lr bolt rifle, so it will be all muzzle noise, no...
by yondering
Wed May 02, 2018 1:04 am
Forum: Silencersmithing Forum
Topic: Endcap thread length?
Replies: 29
Views: 4118

Re: Endcap thread length?

You still want to file or stone the burrs off the thread crests, regardless how clean the thread looks. Otherwise the burrs can make the thread feel tighter than it really is. If you're not cutting at CNC speeds, you should assume you've always got burrs at the thread crests, even if they're minor.
by yondering
Thu Apr 26, 2018 10:00 pm
Forum: Silencersmithing Forum
Topic: Endcap thread length?
Replies: 29
Views: 4118

Re: Endcap thread length?

I use carbide for turning, and yes I have a bunch of inserts missing chips so I hear ya. ECCO, the tool you listed seems to be a 1" shank. I have an AXA toolpost, max clamping is about 1/2" so maybe something like this would be better... http://www.shars.com/products/indexable-cutting/threading-hol...
by yondering
Mon Apr 23, 2018 11:41 pm
Forum: Silencersmithing Forum
Topic: Endcap thread length?
Replies: 29
Views: 4118

Re: Endcap thread length?

Sounds like you figured it out; I was just about to ask if this was for rimfire or centerfire.

My rule of thumb has always been .400-.420" for 22lr threads, and .600-.620" for 5.56 and other appropriate centerfire calibers.