Search found 734 matches

by CMV
Mon Jan 29, 2018 8:35 pm
Forum: Silencersmithing Forum
Topic: 300 blackout suppressor help
Replies: 11
Views: 2902

Re: 300 blackout suppressor help

Feel free to copy what you want from mine: http://www.silencertalk.com/forum/viewtopic.php?f=10&t=136120 Video in that thread somewhere comparing to a commercial can. It is very good on 300BLK for as simple as it is. My sub load data. Both are very accurate and cycle carbine gas AR all day long supp...
by CMV
Tue Sep 05, 2017 6:48 pm
Forum: Silencersmithing Forum
Topic: Baffle to tube clearance
Replies: 7
Views: 2452

Re: Baffle to tube clearance

I read here over and over .005" clearance. And that's what I did for my first several. And they are a bear to get the guts out after just a moderate amount of shooting. (all might be that way...I have no idea since I only own my form1 stuff and not commercial suppressors). So on one build I decided ...
by CMV
Tue Sep 05, 2017 6:35 pm
Forum: Silencersmithing Forum
Topic: First form-1. How much clearance for .22lr ?
Replies: 12
Views: 4409

Re: First form-1. How much clearance for .22lr ?

I use 17/64", but am not drilling freeze plugs with a cordless drill. So depending on how uniform the FPs are, how well they fit the tube, how precisely you can measure center, how accurately you can drill center, etc should increase your fudge factor from that min diameter. I had accuracy issues wi...
by CMV
Fri Jul 07, 2017 9:37 am
Forum: Silencersmithing Forum
Topic: Machining cerakoted parts
Replies: 8
Views: 1394

Re: Machining cerakoted parts

For cerakote, what you are describing will work fine. I cerakote, then engrave often to make the engraving standout or be blackened for a neat look. The issue you will have is creating bad wear areas. While I really like cerakote my one major gripe with it - or a lot of finishes - is that it wears p...
by CMV
Tue Apr 18, 2017 6:27 pm
Forum: Silencersmithing Forum
Topic: Threading Problem
Replies: 11
Views: 1330

Re: Threading Problem

I get that too. If I watch when the threading tool engages I can see the toolpost rock back a little. I don't get that with any other operation - or at least to a degree where it affects dimensions along the part. Only threading. To 'fix' it, my QCTP handle is to the left when tool is locked in - at...
by CMV
Thu Apr 13, 2017 7:19 pm
Forum: Silencersmithing Forum
Topic: 300 Blk suppressor--Design turned into 5.56 can
Replies: 29
Views: 5450

Re: 300 Blk suppressor

http://imageshack.com/a/img924/1687/CNvLKG.jpg So rifle build went a different direction. this will be primarily a 5.56 can that will sometimes see a 308 and eventually ill build a blackout upper. Made some changes to the design im also thinking ill weld the back suppressor cap and have the front o...
by CMV
Wed Apr 12, 2017 8:10 pm
Forum: Silencersmithing Forum
Topic: 300 Blk suppressor--Design turned into 5.56 can
Replies: 29
Views: 5450

Re: 300 Blk suppressor

Cmv, his spacing, clipping, and porting all seem to resemble the Sig silencers. Are they poor performers on 300Blk hosts? Clips should be aligned and baffles need more ports, but I agree; it resembles the Sig srd762ti No idea since I've never had one. I do know that for 1.5" OD, 8" OAL that looks l...
by CMV
Wed Apr 12, 2017 8:03 pm
Forum: Silencersmithing Forum
Topic: 30 cal can - all you need to make one
Replies: 46
Views: 41631

Re: 30 cal can - all you need to make one

What did you knurl the endcaps with? That pattern looks interesting. I have tools that do straight ridges or diamond pattern but haven't seen the dots. Hold off clipping the cones. You might find that you're perfectly pleased with its performance w/o clipping. You can always go back and do that late...
by CMV
Tue Apr 11, 2017 8:44 pm
Forum: Silencersmithing Forum
Topic: 300 Blk suppressor--Design turned into 5.56 can
Replies: 29
Views: 5450

Re: 300 Blk suppressor

What is baffle spacing? Those look WAY too close together for 30 cal. .600 - .700 neighborhood is a good place to be. .625 - .650 is good distance if 300BLK subs are your primary application. Why the tiny port in side of cone? Is that all cones or just first? Regardless, I don't think you want that ...
by CMV
Thu Apr 06, 2017 5:39 pm
Forum: Silencersmithing Forum
Topic: Form 1 Suppressor Questions
Replies: 17
Views: 2170

Re: Form 1 Suppressor Questions

Hello, I have been in the suppressor game for a minute now but rolling my own has started to pique my interest. I started researching Form 1 designs about six months ago, but would like some clarification on the questions below: 1. Do stainless steel and titanium expand at such different rates that...
by CMV
Tue Mar 28, 2017 8:26 pm
Forum: Silencersmithing Forum
Topic: Form 1 Complete, and its loud...
Replies: 19
Views: 4184

Re: Form 1 Complete, and its loud...

BS flag waving. STOP. Don't clip your cones expecting magic. Clipping will not transform marginal into outstanding. In this application at best it will make very good a wee little bit better - and you might need a meter to tell if it did. What is your baffle spacing? You listed one measurement of .2...
by CMV
Fri Mar 24, 2017 6:35 pm
Forum: Silencersmithing Forum
Topic: 30 cal can - all you need to make one
Replies: 46
Views: 41631

Re: 30 cal can - all you need to make one

Why the 2 long spacers?
by CMV
Thu Mar 09, 2017 6:41 pm
Forum: Silencersmithing Forum
Topic: Consensus on bore diameter for 308/7.62x51 build
Replies: 18
Views: 5644

Re: Consensus on bore diameter for 308/7.62x51 build

I used a "U" size drill. .368" As quiet as a commercial can, accuracy is not changed.
by CMV
Thu Feb 23, 2017 7:46 pm
Forum: Silencersmithing Forum
Topic: want to design a tirant 9 based can
Replies: 8
Views: 1005

Re: want to design a tirant 9 based can

If you don't need a booster you can copy my design. Not a Ti-Rant but a very good lightweight performer.
by CMV
Tue Feb 07, 2017 8:05 pm
Forum: Silencersmithing Forum
Topic: USFA ZIP
Replies: 12
Views: 2098

Re: USFA ZIP

If you spend $150 on that POS, I will not read another one of your posts. Just take some friends bowling. You will have a better time and it will last longer, :) :) :) ya, it's a POS I know... But same concept - any .22 pistol w/ fixed barrel & picatinny rail across the top could conceivably have i...
by CMV
Mon Feb 06, 2017 8:00 pm
Forum: Silencersmithing Forum
Topic: USFA ZIP
Replies: 12
Views: 2098

USFA ZIP

Not a silencer question but general NFA that I'm sure someone here knows. If I mount one of those USFA ZIP 22's on a rail on an SBR AR, is that good? Or would I need to have a 16" upper on the SBR lower? Or something else like the ZIP would have to be papered as an SBR to mount it (effectively addin...
by CMV
Mon Feb 06, 2017 7:00 pm
Forum: Silencersmithing Forum
Topic: Alternative to SDTA and opinions?
Replies: 24
Views: 5650

Re: Alternative to SDTA and opinions?

You definitely get to the point where "if some is good, more is better" no longer applies. Just helped a friend do a rimfire can based off my last one but he wanted 1.125" OD vs the 1" OD on mine. After test firing last 2 baffles were still spotless - bright & shiny. Decided to play around with it a...
by CMV
Fri Jan 27, 2017 7:08 pm
Forum: Silencersmithing Forum
Topic: Endcap won't stay tight
Replies: 10
Views: 1408

Re: Endcap won't stay tight

[quote="mpallett"]The suppressor mount threads look off. (could be the picture)[/quo

On the gun or silencer? Gun is factory, silencer endcap are good 1/2-28
by CMV
Tue Jan 24, 2017 7:32 pm
Forum: Silencersmithing Forum
Topic: Endcap won't stay tight
Replies: 10
Views: 1408

Re: Endcap won't stay tight

22/45 Lite. I'll try w/ wave washer installed. For some reason I thought you weren't supposed to use that with the suppressor.....but it is there for a reason.

My other one stays tight w/o using the wave washer but it has a bunch of holes in the endcap for a spanner wrench and is smaller diameter.
by CMV
Sat Jan 21, 2017 5:39 pm
Forum: Silencersmithing Forum
Topic: Endcap won't stay tight
Replies: 10
Views: 1408

Endcap won't stay tight

After a 10 rd mag, the suppressor needs re-tightened. Ready to Cerakote but haven't had this problem before. Should I make a facing cut leaving only a small shoulder around the threaded hole? Or am I doing it wrong & need to leave the wave/spring washer in place on the 22/45? http://cmv.zftp.com/P_2...
by CMV
Fri Jan 06, 2017 12:19 am
Forum: Silencersmithing Forum
Topic: Thrading a ruger mark III
Replies: 6
Views: 1305

Re: Thrading a ruger mark III

You typically get a poor 'trade in value' at your LGS. They have to turn around and sell your used gun and make enough profit to make that worthwhile. If your local armslist is fairly active (my area is) that's a good place. I've never needed more than a week or 2 to sell a reasonably priced gun. Ou...
by CMV
Tue Jan 03, 2017 6:32 pm
Forum: Silencersmithing Forum
Topic: Thrading a ruger mark III
Replies: 6
Views: 1305

Re: Thrading a ruger mark III

I really like my 22/45 LITE but the Mark IV is calling me. Worth the upgrade cost just for the simplicity in takedown/reassembly! I really dislike "just buy a new gun" as an answer to a question like this, but in this case with the marked improvement in dis/assembly, if it were me I'd sell the Mark ...
by CMV
Wed Dec 14, 2016 9:50 pm
Forum: Silencersmithing Forum
Topic: lathe coolant systems
Replies: 24
Views: 1947

Re: lathe coolant systems

I have had limited success doing the inside of a cone with an indexable insert type boring bar. Problem is to have one small enough to reach all the way in & have clearance, the bar itself isn't rigid enough. What I do is take a small brazed carbide bit & grind clearance. Works great & is very cheap...
by CMV
Tue Nov 22, 2016 8:17 pm
Forum: Silencersmithing Forum
Topic: 9mm K can
Replies: 5
Views: 1142

9mm K can

Finished a 9mm K can today. Nothing fancy - pics & vid below. Works really well but a hair too heavy or too long - it made my Beretta 92 ammo sensitive. Video is 147gr Winchester Ranger T - my 147gr MBC handloads must be a little lighter & I got failures to extract or stovepipes about 1 out of every...
by CMV
Sun Nov 20, 2016 3:39 pm
Forum: Silencersmithing Forum
Topic: First F1 suppressor design - starting with a rimfire ...
Replies: 11
Views: 3148

Re: First F1 suppressor design - starting with a rimfire ...

:) That's not experimenting, that's making it fit together properly.

If someone is griping your overall length is 0.050" off, you've done something else to seriously irritate .gov :shock:

Anyway, that's what I'd do if it were mine.