Search found 7 matches
- Thu Oct 05, 2017 7:29 pm
- Forum: Silencersmithing Forum
- Topic: Optimal barrel length for 9mm suppressed
- Replies: 22
- Views: 15013
Re: Optimal barrel length for 9mm suppressed
I have a 5" on my AR SBR. 147s stay subsonic and I was shooting 124 ball and did not hear sonic cracks. I did not use my chrono so I can't tell you exact FPS readings. As for stabilizing, all shot well and using my Eotech sight and firing relatively quickly I was lobbing rounds into 4-5 inches...
- Thu Oct 05, 2017 7:29 pm
- Forum: Silencersmithing Forum
- Topic: Optimal barrel length for 9mm suppressed
- Replies: 22
- Views: 15013
Re: Optimal barrel length for 9mm suppressed
I might add that you should be careful when using factory 9mm ammo. Some of the factory powder used is very abrasive and if it's not burnt very quickly in a short barrel can cause blast baffle wear. WWB used to be notorious for this. Since I reload, I haven't kept current on it. Also IME, 5-6"...
- Sun Sep 24, 2017 4:41 pm
- Forum: Silencersmithing Forum
- Topic: Optimal barrel length for 9mm suppressed
- Replies: 22
- Views: 15013
Re: Optimal barrel length for 9mm suppressed
It did thank youJohn A. wrote:Sorry, maybe this will work.Greenmancgn wrote: Video is down
https://www.youtube.com/watch?v=iLnNKeCCTh0
- Thu Sep 07, 2017 7:29 am
- Forum: Silencersmithing Forum
- Topic: Optimal barrel length for 9mm suppressed
- Replies: 22
- Views: 15013
Re: Optimal barrel length for 9mm suppressed
The Isreali's used a 10.5" barrel on their uzi's, and they had to go with 158 gr bullets to keep them subsonic. 147's would go super sometimes. So, that being part of my reason for liking barrels that are around 8.5 inches for 9mm. This gives more room for achieving full powder burn, while not...
- Wed Sep 06, 2017 7:53 pm
- Forum: Silencersmithing Forum
- Topic: Optimal barrel length for 9mm suppressed
- Replies: 22
- Views: 15013
Re: Optimal barrel length for 9mm suppressed
To be more specific , I was looking to see if there was a standard barrel length that would allow for a good marriage between stabilization and ability to keep the projectile subsonic . Reading a bit more online I see that there are a few factors that come into play. I will eventually reload my own ...
- Mon Sep 04, 2017 2:50 pm
- Forum: Silencersmithing Forum
- Topic: Optimal barrel length for 9mm suppressed
- Replies: 22
- Views: 15013
Re: Optimal barrel length for 9mm suppressed
Yes subsonic , Thank youdoubloon wrote:By optimal you mean the longest barrel possible where things will remain subsonic?
Not optimal like 22lr where once the barrel is too long the bullet starts coasting?
http://www.ballisticsbytheinch.com/9luger.html
- Mon Sep 04, 2017 12:45 pm
- Forum: Silencersmithing Forum
- Topic: Optimal barrel length for 9mm suppressed
- Replies: 22
- Views: 15013
Optimal barrel length for 9mm suppressed
So maybe my google-fu is weak but I cannot find a answer for best length for projectile stabilization and effective length for powder burn. Projectile will be factory load federal 147 gr FMJ (wadcutters) . I have read everything from 4.5 to 10 inches . Is there a chart or a site that can educate me ...