Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 49 users online :: 5 registered, 0 hidden and 44 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Majestic-12 [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Asymmetrical muzzle brake as hop-up?

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Asymmetrical muzzle brake as hop-up?

Unread postAuthor: revelae » Tue Sep 14, 2010 2:55 pm

Hey guys, new to the forum and air-guns in general. Just started looking at this stuff about half a week ago, and I have an idea. I searched a bit and didn't see it mentioned already.

What if you incorporated a hop-up into a muzzle? Have all the pressure escape routes pointing forward on the bottom, and it should give the BB backspin, right?
  • 0

Attachments
HM.png
:arrow:
HM.png (10.05 KiB) Viewed 1304 times
User avatar
revelae
Private
Private
 
Posts: 2
Joined: Sun Sep 12, 2010 3:00 pm
Reputation: 0

Unread postAuthor: jakethebeast » Tue Sep 14, 2010 3:12 pm

hmm i think it just ports some gas away and the bb is going without spin, could me wrong
  • 0

User avatar
jakethebeast
Brigadier General
Brigadier General
 
Posts: 934
Joined: Sat Jul 03, 2010 4:20 pm
Location: Jakes cave
Country: Finland (fi)
Reputation: 11

Unread postAuthor: Gun Freak » Tue Sep 14, 2010 8:26 pm

I think the effect would be insignificant unless you did it along the entire length of the barrel. It would be a good test though. I say go for it and see, the problem here is that it isn't ajustable and would take extensive testing to determine the right hole size and angle for optimum hop-up performance and accuracy. For such a small bore though, it may be hard to implement.
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: revelae » Wed Sep 15, 2010 10:29 am

Aww, I was afraid someone would say that. Now I know though, lol.
  • 0

User avatar
revelae
Private
Private
 
Posts: 2
Joined: Sun Sep 12, 2010 3:00 pm
Reputation: 0

Unread postAuthor: EpicMadness » Sat Nov 26, 2011 3:58 pm

make the top side of the barrel a little bit rough(something like fine sandpaper rough) this'll create a gear effect.
  • 0


EpicMadness
Private First Class
Private First Class
 
Posts: 30
Joined: Sat Nov 26, 2011 1:52 pm
Reputation: 0

Unread postAuthor: Insomniac » Sun Nov 27, 2011 4:54 am

I get the feeling that the projectile is going to be exposed to the (perhaps minimal) rotational force so briefly that it would be unable to induce a significant rotation, let alone cancel any rotation the projectile may have imparted to it by its contact with the barrel. I think to get reasonable spin the port would have to be right near the breech, where the projectile is moving slowly. However this would cost you great deals of propellant gas right at the beginning of the shot... It doesn't seem practical.
  • 0

I wonder how much deeper the ocean would be without sponges.
Right now I'm having amnesia and deja vu at the same time. I think I've forgotten this before.

Add me on msn!!! insomniac-55@hotmail.com
User avatar
Insomniac
Major General
Major General
 
Posts: 1297
Joined: Mon Dec 18, 2006 3:47 pm
Location: Australia
Country: Australia (au)
Reputation: 0

Unread postAuthor: mobile chernobyl » Sun Nov 27, 2011 1:05 pm

Perhaps this is more obvious if you've been researching this for a while - and to aid to Insomniac's post -

The flatline barrel (and others which induce spinning on a non-concentric axis) are overbored to prevent contact on the entirety of the perimeter.

The porting would only let gas out after the projectile has passed it as well - but it would let the stagnate air in front of it a path to exit as well...

The former Smart Parts paintball company used to make a spiral ported barrel with the claim that it would induce rifling on the paintball way back in the day. They dropped this part of the advertising after people figured out it was BS... worth a try though! :D
  • 0

User avatar
mobile chernobyl
Colonel
Colonel
 
Posts: 732
Joined: Sun Dec 03, 2006 11:53 am
Reputation: 9

Sponsored

Sponsor
 


Return to General Spud Cannon Related

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Majestic-12 [Bot], Yahoo [Bot]

Reputation System ©'