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Posted: 10/20/2021 10:15:15 PM EDT
(Added guns to the subject line, this will just be where I post news that I see on Twitter.)
I haven't seen much discussion of the ammo experimentation people have been doing, so I will post some reports here as I see them.
This guy is claiming 180gr at 1200fps out of these caseless, electrically ignited sabot / preloaded cylinder things.  Attached File |
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Posted: 10/20/2021 11:19:40 PM EDT
[#1]
Is that ammonium perchlorate in those things? Looks like small rocket propellant charges used to send the bullet down a barrel. Interesting
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Posted: 10/21/2021 1:28:46 AM EDT
[#2]
Any vids?
I don't think I would have thought of that as a way to accomplish this but that's certainly different. |
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Posted: 10/24/2021 12:32:02 AM EDT
[#3]
More info today
 Attached File |
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Posted: 10/24/2021 12:58:28 PM EDT
[#4]
400+ lb ft energy at muzzle. (Comparable to low-end of 45 ACP)
Very impressive. |
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Posted: 10/24/2021 3:24:25 PM EDT
[#5]
Quote HistoryQuoted: More info today
https://www.ar15.com/media/mediaFiles/13081/FCZoLboVEAcoJu5_jpg-2141528.JPG In for a video! |
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Posted: 10/25/2021 8:41:43 PM EDT
[#6]
Claimed .45-70 trapdoor loads, with video
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Posted: 10/25/2021 8:47:08 PM EDT
[#7]
Quote HistoryQuoted: Claimed .45-70 trapdoor loads, with video
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Posted: 10/25/2021 8:48:11 PM EDT
[#8]
Quote HistoryQuoted: Is he using a flywheel for a recoil spring??? Apparently so!  3D Printed Rifle Chambered in .45-70: Part 3 Guy reminds me of Royal Nonesuch |
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Posted: 11/2/2021 10:28:57 AM EDT
[#9]
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Posted: 11/2/2021 1:52:13 PM EDT
[#10]
Quote HistoryQuoted: Is that ammonium perchlorate in those things? Looks like small rocket propellant charges used to send the bullet down a barrel. Interesting I thought he was using standard black powder. I could be wrong |
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Posted: 11/2/2021 8:23:51 PM EDT
[#11]
Quoted: (Added guns to the subject line, this will just be where I post news that I see on Twitter.) I haven't seen much discussion of the ammo experimentation people have been doing, so I will post some reports here as I see them.
This guy is claiming 180gr at 1200fps out of these caseless, electrically ignited sabot / preloaded cylinder things. https://www.ar15.com/media/mediaFiles/13081/FCKEqeKVcAQ6ydM_jpg-2137758.JPG Well, I guess that's one work around for the primer shortage. 
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Posted: 11/15/2021 11:28:53 AM EDT
[#12]
Finally some large bois. Printa-Bren when?
 Attached File |
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Posted: 11/15/2021 12:30:01 PM EDT
[#13]
Quote HistoryQuoted: Finally some large bois. Printa-Ben when?
https://www.ar15.com/media/mediaFiles/13081/FEMihZpXMAcUBeo_jpg-2167675.JPG Very curious what he's using for the roller bearing surface there, or is it already attached to the trunnion? |
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Posted: 11/15/2021 2:15:51 PM EDT
[#14]
Quote HistoryQuoted: In for a video! Quote HistoryQuoted: Quoted: More info today
https://www.ar15.com/media/mediaFiles/13081/FCZoLboVEAcoJu5_jpg-2141528.JPG In for a video! I wonder if this would work with a broadhead instead? Like a flechette/rocket/projectile hybrid. Might be easier to get better results. |
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Posted: 11/15/2021 8:47:35 PM EDT
[#15]
Video of G3 clone firing 60 rounds, a guy lost $150 betting it didn't work.
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Posted: 11/15/2021 9:09:50 PM EDT
[#16]
That was funny to watch unfold today.
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Posted: 11/16/2021 10:47:32 PM EDT
[#17]
Quoted: (Added guns to the subject line, this will just be where I post news that I see on Twitter.) I haven't seen much discussion of the ammo experimentation people have been doing, so I will post some reports here as I see them.
This guy is claiming 180gr at 1200fps out of these caseless, electrically ignited sabot / preloaded cylinder things. https://www.ar15.com/media/mediaFiles/13081/FCKEqeKVcAQ6ydM_jpg-2137758.JPG That guy is an idiot, and a freshly graduated ME by now too... he should know better on some of the things he does. For examples check out his long exploit into the 50cal 3D printed gun, he's lucky it only blew up a little a few times. |
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Posted: 11/17/2021 12:54:09 AM EDT
[#18]
I knew an engineering student on Weaponeer who tried to convert an SKS to gas delayed blowback using the original gas port location.
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Posted: 11/22/2021 12:07:41 AM EDT
[#19]
Another .308, no real news
 Attached File |
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Posted: 11/22/2021 10:30:22 AM EDT
[#20]
Quoted: Very curious what he's using for the roller bearing surface there, or is it already attached to the trunnion? I actually was in the beta group for the AG. It uses the existing trunnion into a 3d printed barrel mount. Unfortunately my printer went down so I didn't have a chance to roll my own yet. But you do need like a 10T press per the instructions last I looked. |
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Posted: 11/23/2021 7:43:23 AM EDT
[#21]
Cyacrine dissolves ABS. The part is monolithic. ABS with fiberglass reinforcement is the best material.
https://www.blogger.com/blog/post/edit/5513900136336018029/1058415383984289964 |
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Posted: 11/29/2021 10:06:11 PM EDT
[#22]
The Invader PDW is out live now, including a bunch with Chairman Won stippling. |
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Posted: 11/29/2021 10:31:38 PM EDT
[#23]
You boys be careful now!
People don’t think 65,000psi chamber pressure be like it is but it do. |
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Posted: 12/2/2021 12:42:12 AM EDT
[#24]
Quote HistoryQuoted: You boys be careful now! People don’t think 65,000psi chamber pressure be like it is but it do.  The only printed bbls are for low pressure pistol rounds, maybe shotguns. 3-D plastic printing is for everything other than the pressure bearing components, particularly in rifles.
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Posted: 12/2/2021 12:14:09 PM EDT
[#25]
Somebody is testing out a printed UMP. Edit: Two weeks out from release:
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Posted: 1/8/2022 1:36:21 AM EDT
[#26]
Not much detail here and I didn't look at their old posts, but I think this is
Edit: bolt action using printed upper and bolt carrier. Not sure if bolt too.
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Posted: 3/23/2022 1:13:41 AM EDT
[#27]
Ctrl-Pew back with a... mortar?
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Posted: 3/23/2022 9:04:05 AM EDT
[#28]
It is amazing how little people in gd understands 3d printing and saying it will not last and will blow up
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Posted: 3/23/2022 8:48:15 PM EDT
[#29]
Canzerfaust!
Was it on GD? Here's another video. I like the idea, quick soda can delivery.
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Posted: 3/23/2022 9:40:39 PM EDT
[#30]
^ and I should be mad since my 3d-printed fun project idea/side hustle was going to be a vizmod kit to bolt onto a can cannon to make it look like a Carl G
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Posted: 3/23/2022 10:02:02 PM EDT
[#31]
Quote HistoryQuoted: ^ and I should be mad since my 3d-printed fun project idea/side hustle was going to be a vizmod kit to bolt onto a can cannon to make it look like a Carl G Do eet. Lots of folks would rather have a commercial bbl than a 3-D printed one. |
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Posted: 3/24/2022 12:09:36 AM EDT
[#32]
I saw a 3d printed .22 blowback that used an AR barrel and cmmg rimfire conversion bolt carrier group for the action.
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Posted: 3/24/2022 12:18:57 PM EDT
[#33]
Quote HistoryQuoted: I saw a 3d printed .22 blowback that used an AR barrel and cmmg rimfire conversion bolt carrier group for the action. scARpion? |
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Posted: 3/24/2022 8:58:36 PM EDT
[#34]
Quote HistoryQuoted: scARpion? Quote HistoryQuoted: Quoted: I saw a 3d printed .22 blowback that used an AR barrel and cmmg rimfire conversion bolt carrier group for the action. scARpion? or perhaps Tubee? |
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Posted: 6/1/2022 10:19:54 PM EDT
[#35]
Bump, haven't seen much lately but haven't been more than skimming Twitter
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Posted: 6/1/2022 11:22:56 PM EDT
[#36]
https://www.ar15.com/forums/t_1_5/2557514_A-man-after-my-own-heart-essence-of-AR.html
 Not mine, but oh so good - an exposed carrier key. Essence of AR one can make from a 1" pipe. |
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Posted: 6/2/2022 10:02:59 PM EDT
[#37]
Quote HistoryQuoted: Bump, haven't seen much lately but haven't been more than skimming Twitter
That upper is called Bidens Bane. Check out gatalog. |
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Posted: 6/3/2022 1:19:18 AM EDT
[#38]
Quote HistoryQuoted: That upper is called Bidens Bane. Check out gatalog. Quote HistoryQuoted: Quoted: Bump, haven't seen much lately but haven't been more than skimming Twitter
That upper is called Bidens Bane. Check out gatalog. (that's what I thought I was saying, but thanks)  Attached File |
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Posted: 7/27/2022 1:00:01 PM EDT
[#39]
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Posted: 8/24/2022 5:07:42 PM EDT
[#40]
Lots of FMG-9 talk today (my printed FMG-9 thread was archived I guess) due to the B&T variant coming out that uses a Sig frame. But I saw this today which probably is 3-d printed or at least otherwise craft built:
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