Search found 104 matches

by quietoldfart
Mon Dec 21, 2015 4:54 pm
Forum: Silencer Talk
Topic: New CCI Quiet-22 LR - 710 fps
Replies: 22
Views: 2526

Re: New CCI Quiet-22 LR - 710 fps

Yeah, likely measured using a smartphone mic and SPL app. Even the dirt cheap Chinese SPL meters rate unsuppressed CCI Quiet around 120dB, decently suppressed from a pistol at around 102dB. My smartphone has a fairly decent microphone for a phone (Samsung Note 3) and gives a suppressed reading of ab...
by quietoldfart
Sat Nov 28, 2015 10:17 pm
Forum: Silencersmithing Forum
Topic: Maglite
Replies: 12
Views: 2688

Re: Maglite

I've used a tap and die for making my last couple of rimfire suppressors. Not fun, and more crooked threads than straight at first, but I'm learning to get it right with practice. Having an over the barrel portion about 3/4" beyond the threaded portion helps with maintaining alignment provided your ...
by quietoldfart
Sun Nov 01, 2015 10:47 pm
Forum: Silencer Talk
Topic: How to make buckmark quieter
Replies: 20
Views: 1667

Re: How to make buckmark quieter

From what I have seen published, it seems the Sparrow uses a blast baffle bore diameter of 0.25", tapering larger towards the end cap which has a diameter of 0.27". Provided your barrel is precisely threaded such that the suppressor is perfectly concentric to the bore, the risk of a baffle strike wi...
by quietoldfart
Sat Oct 31, 2015 6:17 pm
Forum: Silencer Talk
Topic: How to make buckmark quieter
Replies: 20
Views: 1667

Re: How to make buckmark quieter

Probably won't cycle the slide, but they'll be quiet alright. About like a beer can being popped open with a decent suppressor in place. Unfortunately, at least in my old pistol, they also don't tend to be very stable. Perhaps the Buckmark has a higher twist rate to the rifling? My Unique D4 with th...
by quietoldfart
Fri Oct 30, 2015 1:49 am
Forum: Gun Discussion
Topic: What guns do you own, and why?
Replies: 80
Views: 38138

Re: What guns do you own, and why?

A woman who is drawn inexorably towards more powerful guns is somewhat against the grain of stereotype, especially considering the popularity of silly video demonstrations of women 'failing' when handed shotguns and large calibre pistols. Good for you. If you find something you love to do, provided ...
by quietoldfart
Thu Oct 22, 2015 3:53 am
Forum: Silencersmithing Forum
Topic: Changing the angle on a K-Baffle
Replies: 3
Views: 1207

Re: Changing the angle on a K-Baffle

My initial baffles for a .22lr pistol were very long, using about a 45 degree angle for the cones. These were rather inefficient. It took quite a long suppressor to get half decent suppression with these somewhat primitive K baffles. Since then I've shortened them, to the point where they now use a ...
by quietoldfart
Thu Oct 01, 2015 3:06 pm
Forum: Silencer Reviews
Topic: Dead Air Mask22 Full Review! (Video)
Replies: 7
Views: 2316

Re: Dead Air Mask22 Full Review! (Video)

Thanks Fireman. Especially for your careful work with microphones, attempting to make the recorded noise as true to the actual experience as you are able given the limitations of internet audio. This video offers sound very close to what I've experienced in listening to my own .22lr suppressors, a v...
by quietoldfart
Tue Sep 22, 2015 9:55 pm
Forum: NFA Weapons
Topic: smooth bore pen gun - 25 acp
Replies: 22
Views: 7650

Re: smooth bore pen gun - 25 acp

Here's the finished pen gun, blued this evening with Outers Gun Blue. Came out more brown than I was expecting, which is good as I'd hoped for a brown just expected more of a cold grey-blue. Before doing that I was concerned about the firing pin strike area at the breech, as when dry firing without ...
by quietoldfart
Tue Sep 22, 2015 5:13 am
Forum: NFA Weapons
Topic: smooth bore pen gun - 25 acp
Replies: 22
Views: 7650

Re: smooth bore pen gun - 25 acp

This project of yours, BCJ, it stuck in my head. Couldn't shake it. And so, you know the thing about idle hands... I've gone ahead and done a bit of experimenting. My first prototype was based on a 6" length of airgun barrel in .22", bored out to be a slightly sloppy fit for .22lr. I pressed this in...
by quietoldfart
Tue Aug 11, 2015 4:47 pm
Forum: Silencersmithing Forum
Topic: integrally suppressed old French .22LR pistol
Replies: 27
Views: 8945

Re: integrally suppressed old French .22LR pistol

Ah yes, and one more point with a question. As usual after a couple of dozen shots I took the suppressor apart just now and cleaned the baffles. Inspecting them I see that, as usual, the distribution of dirty lithium grease is fairly even on the faces and the insides of the cones. Also as usual I no...
by quietoldfart
Tue Aug 11, 2015 4:05 pm
Forum: Silencersmithing Forum
Topic: integrally suppressed old French .22LR pistol
Replies: 27
Views: 8945

Re: integrally suppressed old French .22LR pistol

Well, of course I could not resist further testing, once having mentioned it... So here are the results of my brief foray into Hush hole experimentation. With a 0.010" hole drilled on the bottom face of the tube at 1/2 the tube's inside volume, placing the hole about 0.13" behind the edge of the 3rd...
by quietoldfart
Tue Aug 11, 2015 1:29 pm
Forum: Silencersmithing Forum
Topic: integrally suppressed old French .22LR pistol
Replies: 27
Views: 8945

Re: integrally suppressed old French .22LR pistol

Well that fleshes out the similarities quite well, thank you. I did make a slightly taller rear sight blade, actually a bit too tall at first and I've twice filed it down and now have a semi-circular notch cut which helps a bit in using the soldered on brass front blade at various ranges. I turned t...
by quietoldfart
Mon Aug 10, 2015 6:40 pm
Forum: Silencersmithing Forum
Topic: integrally suppressed old French .22LR pistol
Replies: 27
Views: 8945

Re: integrally suppressed old French .22LR pistol

I explain it and show close pictures in this thread: http://www.silencertalk.com/forum/viewtopic.php?t=121181&start=25 It was not easy, but I have long years of experience in improvising with metals and woods and was able to make it work very nicely even though there were moments when I thought I'd ...
by quietoldfart
Mon Aug 10, 2015 4:48 pm
Forum: Silencersmithing Forum
Topic: integrally suppressed old French .22LR pistol
Replies: 27
Views: 8945

Re: integrally suppressed old French .22LR pistol

A few searches have netted me nothing like my little pistol... it would seem I lack the 'Google-fu.' Perhaps you have an image of such a French special operations pistol? All I've been able to find is modern pistols used by this group, mostly the Glock line of pistols with suppressors mounted and of...
by quietoldfart
Tue Aug 04, 2015 4:46 pm
Forum: Silencersmithing Forum
Topic: integrally suppressed old French .22LR pistol
Replies: 27
Views: 8945

Re: integrally suppressed old French .22LR pistol

Well I gave up. The 7" ported barrel with integral suppressor was quiet to be sure, but accuracy was sometimes off. Just could not group consistently for long strings. So I concluded that the very slight off-centre bore was just too big a problem to overcome with shimming of the muzzle plug. I made ...
by quietoldfart
Mon Mar 09, 2015 1:44 pm
Forum: Silencer Talk
Topic: .22 shorts with a suppressor, any advice?
Replies: 10
Views: 779

Re: .22 shorts with a suppressor, any advice?

While I haven't tried the 60g Aguila, I have found that I get a slight graze with most shots when using CCI Quiet through the ported 7.5" barrel of my .22" pistol. Never a trace of it with faster ammunition such as Remington subsonic or CCI SV. Those and other projectiles leaving the muzzle at ~800f...
by quietoldfart
Thu Feb 05, 2015 7:58 pm
Forum: Silencer Talk
Topic: The Hush Hole?
Replies: 53
Views: 8527

Re: The Hush Hole?

Hm. Some sort of acoustical destructive interference causing the bullet to vibrate perhaps? Shapes contribute in often startling ways to the behaviour of sound, and since you're saying a parabolic baffle behaves differently (better, from a suppressor builder's perspective) than other baffle shapes, ...
by quietoldfart
Thu Feb 05, 2015 6:05 am
Forum: Silencer Talk
Topic: The Hush Hole?
Replies: 53
Views: 8527

Re: The Hush Hole?

Thank you very much for the response, that is helpful. It seems that from your experience with your very flexibly designed rimfire suppressor that while certainly an interesting phenomenon, the Hush hole in the middle of the baffle stack is not a definitive, or 'must have' solution. Even if it is be...
by quietoldfart
Wed Feb 04, 2015 3:48 pm
Forum: Silencer Talk
Topic: The Hush Hole?
Replies: 53
Views: 8527

Re: The Hush Hole?

I've just run across this very interesting but somehow abandoned discussion while searching nfatalk, and my curiosity is piqued significantly. My own experimentation with .22" integrated pistol silencers has come to something of a standstill, but if boring a small hole and threading it for a grub sc...
by quietoldfart
Tue Jan 06, 2015 5:45 pm
Forum: NFA Weapons
Topic: smooth bore pen gun - 25 acp
Replies: 22
Views: 7650

Re: smooth bore pen gun - 25 acp

Again, simple inside as it is outside. A nicely reliable mechanism, easy to work on if need be. Very good sir.
by quietoldfart
Tue Jan 06, 2015 1:19 pm
Forum: NFA Weapons
Topic: smooth bore pen gun - 25 acp
Replies: 22
Views: 7650

Re: smooth bore pen gun - 25 acp

Yes, I suppose you fellows' stamp collecting hobby can become expensive. :D Thank you for sharing the project with us all. Might I ask for a sketch showing the interior workings in cross-section? I'm a bit puzzled by the small hole near the firing pin for example. I really enjoy the simplicity of th...
by quietoldfart
Tue Jan 06, 2015 1:01 am
Forum: NFA Weapons
Topic: smooth bore pen gun - 25 acp
Replies: 22
Views: 7650

Re: smooth bore pen gun - 25 acp

Hey now, that is a fun little thing! Bet it'll sting a bit on firing though. Have you tested it yet? Looks small enough that shooting your own finger(s) off might be a concern... hm, if I were in a position to make something like that I might consider going to a 3/4" diameter (yours looks like 0.50"...
by quietoldfart
Fri Dec 26, 2014 7:41 pm
Forum: Silencersmithing Forum
Topic: Another Review/critique request. 9mm boosted can.
Replies: 44
Views: 2091

Re: Another Review/critique request. 9mm boosted can.

There is a limit to the 'more is better' approach with K baffles. In my tinkering I found that long K baffles with sort-of-okay porting (I was learning, still am of course) in a very long can (about 11" OAL with 3.5" over-the-barrel, the barrel ported) made for adequate but not stellar noise reducti...
by quietoldfart
Mon Dec 15, 2014 4:47 am
Forum: Silencersmithing Forum
Topic: Bore size for 9mm cans?
Replies: 7
Views: 5192

Re: Bore size for 9mm cans?

I've found 0.25" quite satisfactory for .22"LR, provided alignment is pretty well perfect. My suppressor length has settled on about 3.5" ahead of the muzzle and as much behind, plus end caps for an 8" total length, with ported barrel on the pistol. The bore is true to the barrel OD so alignment is ...
by quietoldfart
Tue Dec 09, 2014 6:37 pm
Forum: Silencersmithing Forum
Topic: Sound testing Form 1 cans?
Replies: 6
Views: 869

Re: Sound testing Form 1 cans?

I was looking for an affordable high-speed camera for several years. Finally found one used for $100; a Sanyo Xacti HD1010. The 1920x1080 video at 60fps is way beyond my computer's ability to play back so I don't bother shooting that. Might some day if something comes along worth capturing in such h...