Search found 222 matches

by garredondojr
Wed Oct 09, 2019 7:52 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

Listened with headphones this time and wow the N310 is quite a bit quieter than the wolf.

Hopefully you can get the N310 closer to 1k and close up the groups! :mrgreen:
by garredondojr
Fri Sep 20, 2019 5:46 pm
Forum: Silencersmithing Forum
Topic: Group buy 60* cones
Replies: 7
Views: 1261

Re: Group buy 60* cones

cool deal. I'm not in the market but a few other spec's people may want to know is. thickness@skirt and baffle, current temper spec (a, h900, ect...), and base diameter (ie. where the cone is flat where the bore will be drilled....going with something that is nominal for say a 22 caliber can will gi...
by garredondojr
Wed Sep 18, 2019 12:30 pm
Forum: Silencersmithing Forum
Topic: Internal ballistics
Replies: 18
Views: 1050

Re: Internal ballistics

If you use no filler you are not adding any extra weight. This. If you add a small register to the baffle so it's a lap weld you won't have to worry about backpurging and just fusion weld the stack together. There are a few on here that have made some nice homemade orbital setups with a variable sp...
by garredondojr
Sun Sep 15, 2019 1:04 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

https://www.youtube.com/watch?v=vkprsBoImRg

well worth the 35 min!

Now I want to make a "PDW" with mine lol.....Jerk! :mrgreen:
by garredondojr
Sat Sep 14, 2019 10:37 pm
Forum: Silencersmithing Forum
Topic: Internal ballistics
Replies: 18
Views: 1050

Re: Internal ballistics

Hmm without adding weld weight ive got a 1 1/2 added up pretty close. Blast chamber weight is pure estimatiom though. No doubt his can is light as hell Shouldn't be any "weld weight" Fusion welding should be sufficient if you cut your baffles correctly. but if you can do a tubeless full 17-4 at tha...
by garredondojr
Sat Sep 14, 2019 12:42 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

I didn't cut the rib in my mag. I did use SS mags though. garredondojr - I rented a 357 Herrett reamer from 4D Reamer Rentals, and am very satisfied with the results. It worked well enough that I did it again for another set of barrels (I've made 4 of these, two 10.5" and two 16"); the chamber turn...
by garredondojr
Sat Sep 14, 2019 12:18 pm
Forum: Silencersmithing Forum
Topic: Internal ballistics
Replies: 18
Views: 1050

Re: Internal ballistics

That is crazy impressive. My questions are actually geared towards my tubeless ambitions. Use would hopfully be one or two shots over a day for deer and hogs I doubt you could get the weight as light as ECCO's going tubeless unless you did the rest of the stack aluminum and threaded baffles which w...
by garredondojr
Thu Sep 12, 2019 7:14 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

Sounds a lot like my 358 Herrett, same idea. I used Green Mountain blanks too, but in .358" diameter because I wanted the faster 1:14 twist and planned to use .358 rifle bullets anyway. (IIRC when I did mine the .357" were only in 1:20 twist or slower.) I built mine mostly to duplicate 20" 35 Remin...
by garredondojr
Wed Sep 11, 2019 10:20 pm
Forum: Silencersmithing Forum
Topic: Internal ballistics
Replies: 18
Views: 1050

Re: Internal ballistics

lifeandliberty wrote:
Wed Sep 11, 2019 8:57 pm
Super sonic designing the can for both
Didn't feel like uploading a photo but 110gr super is 14k@7" and 20.3K@5" in case you want to do a super shorty :wink:
by garredondojr
Wed Sep 11, 2019 7:08 pm
Forum: Silencersmithing Forum
Topic: Internal ballistics
Replies: 18
Views: 1050

Re: Internal ballistics

lifeandliberty wrote:
Mon Sep 09, 2019 11:07 am
Thats a slick program.

Having trouble finding internal volume of 300 blk. Mind running 7 inch for me?
110gr supersonic, "AR" subsonic, or fast powder subsonic?
by garredondojr
Sat Sep 07, 2019 11:49 am
Forum: Silencersmithing Forum
Topic: Internal ballistics
Replies: 18
Views: 1050

Re: Internal ballistics

Thats pretty impressive. One thing I don't think that factors is burn rate which can influence #'s somewhat. I cheat.... quickload https://i.imgur.com/dxMPgkLl.jpg It's hard to see the cursor but it's at the muzzle exit to the "chamber pressure" reading is at that point so 13k psi at the exit for a ...
by garredondojr
Sun Sep 01, 2019 8:49 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

John A. wrote:
Sun Sep 01, 2019 3:29 pm
:lol:

Lots of good ideas floating around.

I've seen a few guys with some load data using 6.5 Grendel starline brass and 9.3mm mauser bullets.
I think starline makes Grendel "basic" brass (straight walled) if that would be any better for forming 9x39 brass?
by garredondojr
Sun Sep 01, 2019 2:38 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

Thanks. I can't take full credit for the overall design though. The basic principle has been in effect for many years now in England. https://www.youtube.com/watch?v=gS6fGmYl-fM As for cutting off a bolt carrier so you can add a folding stock, there is a guy on youtube doing something similar. Only...
by garredondojr
Sat Aug 31, 2019 12:35 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

Looking good! LIke what you did on the charging handle. I may have to steal that idea :) Another one of my project plans it to make a manual action upper like your doing and cutting the BCG just past the firing pin so I can put a true folding stock on it (no protrusion past the receiver) thus making...
by garredondojr
Thu Aug 22, 2019 8:41 pm
Forum: Silencersmithing Forum
Topic: 9x39 project
Replies: 56
Views: 3212

Re: 9x39 project

Sounds like one of my crazy projects lol. I however pan to do the vintorez'esq build on the AR platform with a ~9" barrel and an pinnned/welded faux suppressor tube with some nagant iron sights welded onto it that will be large enough ID for my 9mm form 1 to fit into. I made myself a "cherry" and cu...
by garredondojr
Thu Aug 15, 2019 11:34 pm
Forum: Silencersmithing Forum
Topic: Suppressor can without tax stamp
Replies: 3
Views: 1664

Re: Suppressor can without tax stamp

It is strongly advised that you wait till you have an approved form 1 before buying components. But if your impatient just know you can't drill anything till you get your approved F1 or your playing with fire!
by garredondojr
Mon Jun 24, 2019 3:13 pm
Forum: Silencersmithing Forum
Topic: Why no stepped cones from major manufacturers?
Replies: 7
Views: 1401

Re: Why no stepped cones from major manufacturers?

Image

Pretty sure he's talking about his five x five can. I'll let him elaborate the why as I have no clue. :D
by garredondojr
Tue Jun 18, 2019 8:04 pm
Forum: Silencersmithing Forum
Topic: kinda off topic 9mm question
Replies: 4
Views: 631

Re: kinda off topic 9mm question

that just might be the way to go. I used to shoot 158 swc's (which were 162gr lubed and sized) and they were quiet and hit hard from my old hi-point 9mm (pre suppressor days) May have to order up a blank and give it a try with those 200's. I have QL so I can use that to find a starting load. I remem...
by garredondojr
Sun Jun 16, 2019 9:36 pm
Forum: Silencersmithing Forum
Topic: kinda off topic 9mm question
Replies: 4
Views: 631

Re: kinda off topic 9mm question

I guess if you don't mind a literal rainbow trajectory. You won't get anywhere near 900 FPS without having nuclear chamber pressures. 950 with a 158 gr. is fairly spicy. I think you'd be lucky to see 500 FPS without pressure signs. Remember, it's not just weight increasing resistance, but also bear...
by garredondojr
Fri Jun 14, 2019 5:06 pm
Forum: Silencersmithing Forum
Topic: kinda off topic 9mm question
Replies: 4
Views: 631

kinda off topic 9mm question

So I was goofing around yesterday at lunch and decided to stuff one of my homemade cast bullets into a 9mm case just for kicks....then I got to playing with QL and was surprised of what I found. This monster 354gr bullet can actually get semi respectable speeds according to QL ~880-950 FT/sec from s...
by garredondojr
Sun Apr 28, 2019 12:42 am
Forum: Silencersmithing Forum
Topic: 30cal Integral Bolt Rifle Build UPDATE 5/24/2019
Replies: 50
Views: 3291

Re: 30cal Integral Bolt Rifle Build UPDATE 4/25/2019

hmm. how about spinning up a new tube in 7.62x25 tokarev :D both different and more efficient for your purposes. I buy most of my bullets from here. shipping sucks unless you make a worthy order which is what I do a few times a year. http://www.shootersproshop.com/nosler-products/nosler-blemished-2n...
by garredondojr
Thu Apr 25, 2019 9:51 pm
Forum: Silencersmithing Forum
Topic: 30cal Integral Bolt Rifle Build UPDATE 5/24/2019
Replies: 50
Views: 3291

Re: 30cal Integral Bolt Rifle Build UPDATE 4/25/2019

Being a bolt gun and a suppressed one to boot wouldn't you want the fastest and least amount of powder to maximize or better yet minimize the amount of gasses needed to be cooled? Trail boss would fit the bill nicely and also fills up the case pretty well. Red dot is fairly bulky and would also work...
by garredondojr
Sat Apr 20, 2019 2:38 pm
Forum: Silencersmithing Forum
Topic: 45 Cal Suppressor Design Review
Replies: 107
Views: 12560

Re: 45 Cal Suppressor Design Review

I find this strangely too coincidental and the fact they just loaded that video 3 days ago.....wow
by garredondojr
Thu Mar 28, 2019 9:35 pm
Forum: Silencersmithing Forum
Topic: Recore with clipped baffles
Replies: 23
Views: 1448

Re: Recore with clipped radial baffles

Nice! looking forward to what the 165 9mm brings. I take it xtreme bullets? been wanting to try them myself.

Have you tried K's before? That's my plan on my 9mm can as I don't have the tooling to cut radials. and I want to do a scratch build.