Search found 34 matches

by policetruck
Sun Aug 27, 2017 10:12 am
Forum: Silencersmithing Forum
Topic: Drilling Misshap
Replies: 62
Views: 12250

Re: Drilling Misshap

Yes you need to use a center drill, slowly, and start drilling with the center drill down to the bigger angle. That will give your bit a good starting point and if the center drill goes through that alleviate some of the pressure on the drill point. Which will reduce some of the heat that builds up.
by policetruck
Thu Nov 03, 2016 12:00 pm
Forum: Silencersmithing Forum
Topic: 60 degree cone baffles.
Replies: 6
Views: 2625

Re: 60 degree cone baffles.

Pistolpeta I hogged mine out with a zero flute but finished with boring bar on the compound. I mainly did that for time and saving my wrist on the compound. You can use CAD or a little trig and just figure out how deep to cut then leave yourself a couple of passes to clean up any chatter or irregula...
by policetruck
Sat Oct 15, 2016 5:24 pm
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done -- Range Report.

T-rex, I understand. I'll try that out too.

I'm not complaining about the action noise, I have a govnah adjustable gas block and I can turn the gas off completely, which is how I shoot it during this testing phase.
by policetruck
Sat Oct 15, 2016 8:58 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done -- Range Report.

Thanks for the advice guys. I've re-oriented the components to alternate 180 deg every cone. I can also rotate and or flip the spacers independently from the cones. So, yeah I'm going to just play with orientation for now. I also did find out that the Remington subs aren't to far from the sound barr...
by policetruck
Fri Oct 14, 2016 9:37 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done -- Range Report.

John,

They are factory subs.

I was also thinking of opening the ports more. I figure it couldn't hurt.
by policetruck
Fri Oct 14, 2016 9:33 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done -- Range Report.

T-Rex, the spacer vents were towards the exit end and aligned opposite of the step cut. I took plenty of pictures of the carbon and how it flowed through the cones and such. I think it can provide some clues. I did drill a small hole on the perimeter of the coaxial dividers and I noticed something i...
by policetruck
Thu Oct 13, 2016 7:10 pm
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Shot about six rounds through it this morning. I would've shot more but I am extremely low on ammo and only have about 6 more subs left (about 100 more supers). It's pretty good but, I think it could be a little quieter. I can hear the bullet impacting the ground about 25 yards away but it's still n...
by policetruck
Wed Oct 12, 2016 8:18 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Still on nights, not able to go shooting until probably next week. Oh this is worse than waiting for the stamp. Whiterussian, here is a picture of a spacer, they are all the same right now. And a picture of it disassembled which also shows the spacers. http://i946.photobucket.com/albums/ad304/police...
by policetruck
Tue Oct 11, 2016 3:56 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Sweet! Can you post more Pics of the Ported Spacers? They seem to perform a coaxial venting function similar to Omegas. It looks overbuilt for a 300BLK. It would probably perform great on a .300WSM. :idea: I'm going to incorporate some of these elements in my next Magnum build. 8) :mrgreen: I'll po...
by policetruck
Mon Oct 10, 2016 6:56 pm
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

nice work, very well done. i cant wait to hear about how it shoots Thank you and me either. I've been working nights so... I think I'm going to put a couple rounds through it tomorrow morning. I have some Remington 220 gr subs just waiting around for this occasion. Also for build documentation the ...
by policetruck
Mon Oct 10, 2016 6:00 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Also here is a picture of my muzzle brake from a long time ago it seems.

Image
by policetruck
Mon Oct 10, 2016 5:56 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Can complete! Now to shoot and see how it sounds. I'm not sure if my steps in the cones are deep enough. I was reading the post where curtistactical was talking about his tests with different cuts in the cone entrance. His conclusion was that the half diameter step/clip cut, .125" deep yielded the b...
by policetruck
Sat Oct 08, 2016 2:29 pm
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

I know people like pictures of machine setups and stuff so here are some pictures of parts of the machining process. I'm not the best at remembering to take pictures while I'm building things. Machining end cap outter face in our CNC mill http://i946.photobucket.com/albums/ad304/policetruck0/14BE03C...
by policetruck
Fri Oct 07, 2016 5:01 pm
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Yeah I was actually being lazy. I know we have some mics around with a ball end instead of two flats. I just have to find it. One of those things that gets buried cause we don't use it very often. Also most of the bearings we have around are questionable on roundness since they are used/bad machine ...
by policetruck
Fri Oct 07, 2016 3:39 pm
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

I bored it from bar stock. I was very fortunate to have about a foot of leftovers from another job.
by policetruck
Fri Oct 07, 2016 7:25 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Short barrel, yes. Full auto or mag dumps? I don't have that much money. Partly why I'm building my own can. I'm also really enjoying the design and work involved in making something nice. About it being heavy duty, I'm trying to shave all the weight I can. Actually trimming the blast baffle is on m...
by policetruck
Fri Oct 07, 2016 12:51 am
Forum: Mid South
Topic: Ok, who's in Virginia?
Replies: 116
Views: 46529

Re: Ok, who's in Virginia?

Just west of Richmond , Louisa Co.

For now...
by policetruck
Fri Oct 07, 2016 12:36 am
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

Re: 300 blk coaxial build almost done

Ok some more of what is already done... Blast baffle and blast baffle spacer. Spacer is .080" at the small diameter and .050" at the large. Baffle is supposed to be .080 but I think it's closer to .095". I don't have the right tools to measure The cone but taking other measurements and calculating i...
by policetruck
Thu Oct 06, 2016 10:39 pm
Forum: Silencersmithing Forum
Topic: 300 blk coaxial build almost done -- Range Report.
Replies: 31
Views: 5110

300 blk coaxial build almost done -- Range Report.

Sorry this is pretty much just a teaser for now. Just pictures of the outside. I was going to build an omega based can, but have decided to change my spacers and vents to the coaxial space and add 2 baffles. I'll finish it in the next week (I hope) and get some pctures of the finished stack. http://...
by policetruck
Wed Sep 14, 2016 10:18 pm
Forum: Silencersmithing Forum
Topic: form 1 and the new trust rules
Replies: 15
Views: 1231

Re: form 1 and the new trust rules

I would think, that it was a way to place more restrictions without new legislation. I'm sure from the POTUS. Like Bender said, they read the forums (that doesn't surprise me one bit) and I'm sure they saw how the general consensus was to go with a trust because it was less work/less red tape and fi...
by policetruck
Wed Sep 14, 2016 10:10 pm
Forum: Silencersmithing Forum
Topic: Video of my form 1 SD Tactical Arms/freeze plug can
Replies: 4
Views: 1061

Re: Video of my form 1 SD Tactical Arms/freeze plug can

Thanks for the video. I particularly liked at the end the suppressed vs non, alternating shots. It made the comparison more effective.
by policetruck
Tue Sep 13, 2016 7:00 pm
Forum: Silencersmithing Forum
Topic: form 1 and the new trust rules
Replies: 15
Views: 1231

Re: form 1 and the new trust rules

Bendersquint wrote:
Well thats great news, now I can make my one person trust, then after approval add the neighborhood, family and local shooting club on it!

If you think about that it kinda defeats the whole reason for 41P/F.

It's the government, you have to take reason out of the equation.
by policetruck
Tue Aug 30, 2016 6:59 am
Forum: Silencersmithing Forum
Topic: Stuck Cap
Replies: 4
Views: 629

Re: Stuck Cap

Hasdrubal, were they both (cap and tube) made from stainless, and the same kind of stainless? Stainless steel on stainless steel has a tendency to gall extremely fast and lock up really bad at just about the first sign of friction. For areas of concern I would use anti-seize and two different types ...
by policetruck
Sun Jul 10, 2016 7:20 am
Forum: Silencersmithing Forum
Topic: Shrink fitting end caps
Replies: 13
Views: 1279

Re: Shrink fitting end caps

Doh! That's what I get for generalizing.
by policetruck
Fri Jul 08, 2016 7:27 am
Forum: Silencersmithing Forum
Topic: Shrink fitting end caps
Replies: 13
Views: 1279

Re: Shrink fitting end caps

Also remember, every rifle that has a pressed in barrel also has a cross pin to lock it in place.