Search found 73 matches

by Zero99z
Sat May 30, 2020 8:58 pm
Forum: Handloading
Topic: .50 BMG Subsonic bolt guns?
Replies: 10
Views: 7688

Re: .50 BMG Subsonic bolt guns?

I'm a little late on this one, but what powders will work? Red dot is shot she'll powder right? Would hodgdon work?
by Zero99z
Sat May 30, 2020 1:13 pm
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

Re: 50BMG update thread

I finally got my form 1 done yesterday!

Form 1 done https://imgur.com/a/BcEbpVt
by Zero99z
Wed May 27, 2020 7:26 pm
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

Re: 50BMG update thread

Finally got my can tacked up and should have it finished by the weekend, if not tomorrow. The angle isn't great, but it's just under 20". Form 1 https://imgur.com/a/OvepE1F I know it's a goofy design and may not work great, but that's ok. My theory is that by having the baffle stack in a smaller tub...
by Zero99z
Mon May 18, 2020 12:23 pm
Forum: Silencersmithing Forum
Topic: Moving with a Form 1 suppressor
Replies: 10
Views: 277

Re: Moving with a Form 1 suppressor

From what I've heard, and I could be wrong, it's just a change of address with the ATF.
by Zero99z
Sun May 17, 2020 10:29 am
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

Re: 50BMG update thread

T-Rex wrote:
Sun May 17, 2020 10:08 am
Your design doesn't require a blast spacer, correct?
Regardless, I highly doubt you'll fire enough rounds through this suppressor to do detrimental damage to 1/8" thk steel. Especially since it's not seeing a direct blast front.
Blast spacer? I'm still going to have a blast baffle.
by Zero99z
Sun May 17, 2020 8:55 am
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

Re: 50BMG update thread

IMHO, you've just negated the brake porting. The brake would have diffused the blast much better than those slits. What you've done is refocused the blast stream. If you were worried about gas eroding the tube interior, this would be more detrimental than the open brake. Get rid of that shield enti...
by Zero99z
Sat May 16, 2020 5:40 pm
Forum: Silencersmithing Forum
Topic: 50BMG baffle design
Replies: 0
Views: 97

50BMG baffle design

I'm trying to figure out the best way to do the baffles. The end baffle is already welded in cuz I knew for sure that's where it was going. The rest of them I'm not so sure about. I got a total of 10 freeze plugs I can make into baffles, including the one already welded in. There's an 11th I'm makin...
by Zero99z
Sat May 16, 2020 2:31 pm
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

Re: 50BMG update thread

Just finished up on the inconel blast diffuser. I thought I'd go a little unconventional. I know brakes can erode the sides of the can, and I thought this might help reduce that. Let me know what you guys think!

Diffuser https://imgur.com/a/z0GhOaw
by Zero99z
Tue May 12, 2020 5:52 pm
Forum: Silencersmithing Forum
Topic: Will you show me yours if I show you mine?
Replies: 10
Views: 528

Re: Will you show me yours if I show you mine?

I'm still building mine cuz I just got my stamp yesterday. It's a QD can, but the mount isn't drawn. Don't judge my art skills 😆

https://imgur.com/a/sLO6bjC
by Zero99z
Tue May 12, 2020 5:49 pm
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

Re: 50BMG update thread

Yes, sorry. ID was intended, instead of OD. Still, pretty small. What's the overlap, of the 2 tubes? You don't typically fill a 50BMG suppressor w/ baffles. Plug welding will eliminate need for spacers, saving weight. It'll probably be 4-6". This is how I'm thinking of doing the baffles https://img...
by Zero99z
Tue May 12, 2020 4:42 pm
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

Re: 50BMG update thread

No reason to go so large, with plug hole. Do 6 or 8 1/8" plugs. Larger holes = more heat. 1.81 OD is EXTREMELY small for 50BMG. It has a 1.80 ID and 2"OD, but that's just the tube that holds the baffles. It recesses into a 3" OD tube. Both tubes are 12" long. It's a coaxial hybrid design. Another t...
by Zero99z
Tue May 12, 2020 12:50 pm
Forum: Silencersmithing Forum
Topic: 50BMG update thread
Replies: 11
Views: 295

50BMG update thread

Alright, so I got my tax stamp, and I'm trying to figure out how to plug weld the freeze plug baffles. Yes, I know, not great for 50 cal, but they work for my design https://imgur.com/a/x2SSH1x . The tube is 2" od, 1.80 id. I'm thinking 4 counter sunk 1/4" holes should work. Opinions?
by Zero99z
Sat May 09, 2020 2:03 pm
Forum: Silencersmithing Forum
Topic: To drill, or not to drill? Gas defuser for 50bmg can
Replies: 1
Views: 156

Re: To drill, or not to drill? Gas defuser for 50bmg can

As promised, and update with pics of the (almost) finished mount. Almost because I ran out of welding gas.

Tacked up mount https://imgur.com/a/rN45sE6
by Zero99z
Fri May 08, 2020 6:32 pm
Forum: Silencersmithing Forum
Topic: To drill, or not to drill? Gas defuser for 50bmg can
Replies: 1
Views: 156

To drill, or not to drill? Gas defuser for 50bmg can

I just finished up some welding on the QD mount, an I'm wondering if I should drill holes in the inconel tube or just cut it off. I pressed and pinned the tube into a 304 SS flange, along with a short piece of inconel exhaust pipe to prevent erosion, with the thicker tube acting as a seat for the mu...
by Zero99z
Tue May 05, 2020 12:48 pm
Forum: Silencersmithing Forum
Topic: Baffles or ???
Replies: 9
Views: 445

Re: Baffles or ???

Spiral spring baffles ARE WAY old tech. I don't think anybody uses the design anymore.
by Zero99z
Sat Apr 25, 2020 5:49 pm
Forum: Silencersmithing Forum
Topic: My 50bmg suppressor journey
Replies: 9
Views: 537

Re: My 50bmg suppressor journey

That thing is gonna weigh about 20 pounds using so much heavy wall carbon steel tube. If I were making it, I would go tubeless using 2.5" 17-4 H900 with .100" WT in the blast chamber and .065" from there forward. Barrett's qdl is made from 4130, and not all of us have machining equipment. Personall...
by Zero99z
Sat Apr 25, 2020 8:25 am
Forum: Silencersmithing Forum
Topic: My 50bmg suppressor journey
Replies: 9
Views: 537

Re: My 50bmg suppressor journey

I'm still waiting on the 2.75, .25 tube. I have been pondering how to keep weight down as the .250 tube will be heavy. I will likely just us it for the blast chamber and for bushings to weld the washers and freeze plugs directly to the 3" outer tube. I will try and assemble a few sketches over the ...
by Zero99z
Wed Apr 22, 2020 8:21 am
Forum: Silencersmithing Forum
Topic: My 50bmg suppressor journey
Replies: 9
Views: 537

Re: My 50bmg suppressor journey

I'm doing a hybrid coaxial can using 1.80 dia freeze plugs.

http://imgur.com/a/smOEqEh

I'm still working on the spacing, and I may need to make custom washers, but I have decided if I'll use any yet.
by Zero99z
Mon Apr 20, 2020 9:48 am
Forum: Silencersmithing Forum
Topic: Form-1 50 BMG suppressor
Replies: 37
Views: 4867

Re: Form-1 50 BMG suppressor

1 is the primary blast baffle/support that goes over over the tip of the brake. 2 is the "gas stripper" baffle. Is your process moving from left to right (as it should be depicted)? If so, #2 is called a blast baffle and what you're creating (around the baffle stack) is called a coaxial chamber. Oh...
by Zero99z
Sat Apr 18, 2020 8:02 pm
Forum: Silencersmithing Forum
Topic: MAC style can for 50 cal?
Replies: 3
Views: 547

Re: MAC style can for 50 cal?

A little update, I have settled on a design. It's a bit unconventional, but it should work alright.

http://imgur.com/a/j676bfP
by Zero99z
Sat Apr 18, 2020 7:07 pm
Forum: Silencersmithing Forum
Topic: Form-1 50 BMG suppressor
Replies: 37
Views: 4867

Re: Form-1 50 BMG suppressor

There is a local place that does hard anodize. I will get a price on getting these pieces done. That's ok, but understand that these are silencer (firearm) parts and can't be left w/ just anyone. If they don't have the proper FFL license, you'll need to remain at the shop, until parts are finished....
by Zero99z
Sat Apr 18, 2020 7:00 pm
Forum: Silencersmithing Forum
Topic: My 50bmg suppressor journey
Replies: 9
Views: 537

Re: My 50bmg suppressor journey

Onlinemetals.com is where I get most of my raw stock. They have decently priced 4130.
by Zero99z
Fri Apr 17, 2020 12:20 pm
Forum: Silencersmithing Forum
Topic: Form-1 50 BMG suppressor
Replies: 37
Views: 4867

Re: Form-1 50 BMG suppressor

There is a local place that does hard anodize. I will get a price on getting these pieces done. That's ok, but understand that these are silencer (firearm) parts and can't be left w/ just anyone. If they don't have the proper FFL license, you'll need to remain at the shop, until parts are finished....
by Zero99z
Thu Apr 16, 2020 1:38 pm
Forum: Silencersmithing Forum
Topic: Form-1 50 BMG suppressor
Replies: 37
Views: 4867

Re: Form-1 50 BMG suppressor

I know aluminum isn't recommended for most rifle calibers, but anodizing or cerakote might help. I'm using preformed SS freeze plugs, 1.80 dia, from wedge machining. Mines a little goofy, I'm recessing the main tube into the expansion chamber and using a "gas stripper" baffle to try to limit the pre...