Search found 1990 matches

by ranb
Mon Apr 13, 2015 4:54 pm
Forum: Silencer Talk
Topic: Awesome fast ATF return times !!!
Replies: 38
Views: 4380

Re: Awesome fast ATF return times !!!

I had two SBR form 1's approved in three weeks late last year. I e-filed two form 1's for cans back on 2/9 which just got approved today in WA. ATF is slipping but still better than the record 11 month wait a while back

Ranb
by ranb
Mon Apr 13, 2015 4:52 pm
Forum: News Stories
Topic: hush
Replies: 25
Views: 1766

Re: hush

I'm very sorry to hear this. I'm one of those who went round and round with him on the forum and sometimes did not see eye to eye, but I'm sad to hear of his passing.

Randy
by ranb
Tue Mar 10, 2015 9:38 am
Forum: Legal and Political
Topic: ATF worked in reverse on the M855 ban
Replies: 11
Views: 2136

Re: ATF worked in reverse on the M855 ban

Since M855 bullet does not even come close to the federal definition of armor piercing, how can any regulatory agency claim that they are AP?

Ranb
by ranb
Thu Mar 05, 2015 3:17 pm
Forum: Upper Plains
Topic: Minnesota, silencers arent illegal!
Replies: 21
Views: 58798

Re: Minnesota, silencers arent illegal!

New silencer bills in the works in Minnesota. Senate Bill House Silencer Bill The deadline for bills to be acted on in the house of origin is March 20th, the 27th for bills from the other house. Committee Deadlines Contact info Find your legislator Senate contact information House of Representatives...
by ranb
Wed Mar 04, 2015 11:25 pm
Forum: Silencer Talk
Topic: Has anyone on here actually "shot out" a silencer?
Replies: 10
Views: 1914

Re: Has anyone on here actually "shot out" a silencer?

I have pictures of my mostly aluminum 223 can on this site. The K baffles are heavily eroded and the can is louder than it was 8000 rounds earlier.

Ranb
by ranb
Tue Feb 10, 2015 1:39 am
Forum: Silencersmithing Forum
Topic: spacer thickness?
Replies: 4
Views: 1226

Re: spacer thickness?

I made .020" spacers from aluminum for a .458 socom can with machined cone baffles. No issues but everything fits snug.

Ranb
by ranb
Tue Feb 10, 2015 1:36 am
Forum: Silencersmithing Forum
Topic: 223 can embarrassingly loud now
Replies: 7
Views: 2032

Re: 223 can embarrassingly loud now

I made two 223 cans from .035" 4130 and designed one made from 316 .049" tubing that was turned down to .035". None of them have any issues at all. They don't get glow stick hot though.

Ranb
by ranb
Sat Feb 07, 2015 10:01 pm
Forum: Silencersmithing Forum
Topic: 223 can embarrassingly loud now
Replies: 7
Views: 2032

Re: 223 can embarrassingly loud now

Pointy 60 degree cones. 1.5" tubing with a .049" wall from Online Metals in Seattle. I'll reduce the thickness of the tubing beyond the blast chamber to .035". The baffle stack will be welded to the front end cap to keep it all in place.

Ranb
by ranb
Sat Feb 07, 2015 6:57 pm
Forum: Silencersmithing Forum
Topic: 223 can embarrassingly loud now
Replies: 7
Views: 2032

Re: 223 can embarressingly loud now

Direct thread, welded end caps, welded baffle/spacer stack, 304 or 316 tubing and bar stock.

Ranb
by ranb
Sat Feb 07, 2015 10:46 am
Forum: Silencersmithing Forum
Topic: 223 can embarrassingly loud now
Replies: 7
Views: 2032

223 can embarrassingly loud now

I posted earlier about erosion problems with my 12 year old 4130/aluminum can I made for my ar-15. I hadn't noticed that it was louder over the years until last week when I had it shot along side an OPS can. I think it was this one. http://www.opsinc.us/suppressors/3rd-Model-5.56mm.html It is time f...
by ranb
Wed Jan 28, 2015 2:52 pm
Forum: Silencersmithing Forum
Topic: Bore scope photos. (large photos)
Replies: 3
Views: 1430

Re: Bore scope photos. (large photos)

I love the scallopped edge in your 1st pic. Is this can bought or F1? If F1, how did you create the scallops? Just cross bore w end mill? The added surface area probably helps w cooling and disrupting airflow. All my cans are form 1. The muzzle brake is one I bought and modified. I had intended to ...
by ranb
Wed Jan 28, 2015 12:02 am
Forum: Silencersmithing Forum
Topic: Bore scope photos. (large photos)
Replies: 3
Views: 1430

Bore scope photos. (large photos)

I bought this; https://www.amazon.com/gp/css/order-history?ie=UTF8&ref_=pe_385040_128020140_TE_SIMP_on&search=112-8808666-6316228& A 5.5 millimeter bore scope to take a look inside of my silencers. It needs to be brighter, but I think I can find a way to get it done. http://i171.photobucket.com/albu...
by ranb
Wed Jan 14, 2015 10:54 pm
Forum: Silencersmithing Forum
Topic: 10/22 can design
Replies: 10
Views: 1431

Re: 10/22 can design

If you zoom in on my drawing you can see that there is an end cap between the tube and barrel to fill the gap.

Randy
by ranb
Wed Jan 14, 2015 3:29 pm
Forum: Silencersmithing Forum
Topic: 10/22 can design
Replies: 10
Views: 1431

Re: 10/22 can design

1" .020" thick 304 SS tubing is about 0.28 ounces per inch; 4.2 oz for a 15 inch tube or 1.7 oz for a six inch tube. I had considered buying a shrouded barrel made to contain a silencer, making and pinning my own shroud or going full length. Containing a complete silencer in a shroud is a waste of w...
by ranb
Wed Jan 14, 2015 11:28 am
Forum: Silencersmithing Forum
Topic: 10/22 can design
Replies: 10
Views: 1431

Re: 10/22 can design

The baffle design is secondary to how the stack is attached to the muzzle. If I use spacers they will be used along with cone baffles. I want a combined barrel/silencer length of 16" and the ability to take it apart for cleaning. The barrel crown and tube would be cleaned every 500 rounds, the welde...
by ranb
Wed Jan 14, 2015 9:23 am
Forum: Silencersmithing Forum
Topic: 10/22 can design
Replies: 10
Views: 1431

Re: 10/22 can design

I already have a thread on 22lr can with a blast cone and K's. I want to keep the overall length short for my granddaughter. The K's shown are what I normally use (ports are not shown). I'm not a fan of porting a barrel to make the ammo slower. Why use crappy cheap high velocity ammo that groups 3 i...
by ranb
Wed Jan 14, 2015 12:26 am
Forum: Silencersmithing Forum
Topic: 10/22 can design
Replies: 10
Views: 1431

10/22 can design

I'm making a integral silencer for a 10/22 for my granddaughter. It will start out with a tapered SS barrel cut down to 10" with a one inch .020" 304 SS tube blind pinned to the back of the barrel to avoid the SBR tax. The baffle stack will be welded together along with the front end cap and threade...
by ranb
Sun Jan 11, 2015 12:34 pm
Forum: Rifle Discussion
Topic: Mossberg MVP w/223 subsonic
Replies: 5
Views: 1495

Re: Mossberg MVP w/223 subsonic

ranb/Randy - SEE (Secondary Explosion Effect) is real and from slow burning powders in large cases in all the scientific testing/data I've seen published. I saw no scientific data in any of those links. The guns.connect link did have some scientific information and the rest were interesting reading...
by ranb
Tue Jan 06, 2015 6:10 pm
Forum: Silencersmithing Forum
Topic: First ATF Ruling of 2015......applies to everyone in this forum!
Replies: 94
Views: 10160

Re: First ATF Ruling of 2015......applies to everyone in this forum!

john.t.little1 wrote:I've got a meeting in the morning with ATF If there are any questions anyone would like me to ask to clarify let me know.
Please ask if this ruling applies to an unlicensed person who allows another individual to use their tools without compensation. Thanks.

Ranb
by ranb
Mon Jan 05, 2015 5:57 pm
Forum: Silencersmithing Forum
Topic: First ATF Ruling of 2015......applies to everyone in this forum!
Replies: 94
Views: 10160

Re: First ATF Ruling of 2015......applies to everyone in this forum!

Well I read the ruling twice and read through these three pages of the thread. It appears to apply to businesses and individuals who assist other unlicensed persons while making a firearm. Held, any person (including any corporation or other legal entity) engaged in the business of performing machin...
by ranb
Sun Jan 04, 2015 1:34 pm
Forum: Rifle Discussion
Topic: Mossberg MVP w/223 subsonic
Replies: 5
Views: 1495

Re: Mossberg MVP w/223 subsonic

NM04 is similar in appearance and load data to Bullseye, in other words it is not bulky and burns very fast. Like Bullseye, it doesn't come close to filling any case it is used for including 9mm, 45acp or 38 special. I got mine from http://www.gibrass, I think it is surplus Chinese powder. I don't b...
by ranb
Sun Jan 04, 2015 1:57 am
Forum: Rifle Discussion
Topic: Mossberg MVP w/223 subsonic
Replies: 5
Views: 1495

Mossberg MVP w/223 subsonic

I finally got the Mossberg MVP Patrol (16" threaded barrel) out of the safe and with a little trial and error found that 3.6 grains of NM04 (like Bullseye) pushes a 55 fmj to 1050 fps. The 1-9 twist stabilizes the bullet well enough to give me 5 round groups of only 1.25". Louder than a 22lr, but mo...
by ranb
Thu Jan 01, 2015 3:44 pm
Forum: Silencer Talk
Topic: 308 win short barrel silencer selection
Replies: 18
Views: 2040

Re: 308 win short barrel silencer selection

600 wrote:Do I risk baffle strikes due to instability if firing 240gr in a 1:10? To me the 1:10 is pretty universal and is a "do it all" twist.
Supersonic no, subsonic yes.

Ranb
by ranb
Tue Dec 30, 2014 10:52 am
Forum: Silencersmithing Forum
Topic: Grizzly Lathe?
Replies: 23
Views: 3225

Re: Grizzly Lathe?

I will tell you that for building a suppressor buying machine tools is the most expensive way to do it.You can hire someone to build a total custom can for thousands less. There are two main ways I promote silencer use at home in WA. I allow anyone with a host to use my silencers while I watch at t...
by ranb
Mon Dec 29, 2014 10:55 pm
Forum: Silencer Talk
Topic: Silencers in New Zealand
Replies: 1
Views: 507

Silencers in New Zealand

I might be making a trip to NZ in the fall of 2015. Would like to see what you guys have for silencers. I'll arriving in Dunedin or Wellington and traveling around for about a week or two.

Randy