You are Unregistered, please register to use all of the features of FirearmsTalk.com!    
Firearm & Gun Forum - FireArmsTalk.com > Gunsmithing & Do-It-Yourself Projects > Gunsmithing Forum >

Questions on Rifling


Reply
 
LinkBack Thread Tools Display Modes
Old 08-08-2016, 05:13 PM   #1
Feedback Score: 0 reviews
 
Join Date: Jun 2016
Posts: 5
Liked 2 Times on 1 Posts

Default Questions on Rifling

Hello, I have a few questions regarding rifling; 1. Is there any significant performance differences between traditional and polygonal rifling? 2. If the gun barrel was not fixed, would the bullets flying through the barrels cause the barrels to spin from the rifling? and 3. How is rifling applied to a barrel?

Any info would be helpful :3
Rotary is offline  
2
People Like This 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 08-08-2016, 06:05 PM   #2
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
locutus's Avatar
 
Join Date: Dec 2011
Location: Wyoming
Posts: 15,157
Liked 12736 Times on 6664 Posts
Likes Given: 12446

Default

Quote:
Originally Posted by Rotary View Post
Hello, I have a few questions regarding rifling; 1. Is there any significant performance differences between traditional and polygonal rifling? 2. If the gun barrel was not fixed, would the bullets flying through the barrels cause the barrels to spin from the rifling? and 3. How is rifling applied to a barrel?

Any info would be helpful :3
As far as cut rifling v polygonal, ask 10 experts and get 10 opinions.

Polygonal is easier and cheaper to mass produce, and produces excellent accuracy. cut rifling is more expensive, harder to produce on automated machinery, but IF DONE RIGHT can be a bit more accurate. (And the next 10 posts will disagree with one or more of these points)

There's also " button" or swaged rifling which can be both mass produced and accurate.

As far as how it's done, I don't have the energy to write the 12-15 pages to explain it. (google is your friend, here)
__________________
To the world, you may be only one person. but to one person you may be the world.
locutus is offline  
2
People Like This 
Reply With Quote
Old 08-08-2016, 07:02 PM   #3
Feedback Score: 0 reviews
 
hiwall's Avatar
 
Join Date: May 2011
Location: Cleator,AZ
Posts: 4,080
Liked 1153 Times on 757 Posts
Likes Given: 288

Default

polygonal rifling is not often encountered. If it was better many companies would be doing it that way.
Quote:
cause the barrels to spin from the rifling?
Yes but the barrels would weigh much more than the bullet so the barrel would be less likely to spin.
Quote:
3. How is rifling applied to a barrel?
Several ways.
__________________
Just walking on the edge of of my grave.
hiwall is offline  
dango Likes This 
Reply With Quote
Old 08-08-2016, 07:34 PM   #4
Lifetime Supporting Member
FTF_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
dango's Avatar
 
Join Date: Jun 2008
Posts: 10,095
Liked 9083 Times on 4578 Posts
Likes Given: 36416

Default

The why is obvious , an imperfect projectile spinning becomes , bla bla bla !
Does bring to mind some interesting questions though , pistol compared to rifle ?
dango is offline  
 
Reply With Quote
Old 08-08-2016, 08:04 PM   #5
Administrator
FTF_ADMIN.png
Feedback Score: 0 reviews
 
c3shooter's Avatar
 
Join Date: Feb 2008
Location: Third bunker on the right,Central Virginia
Posts: 20,458
Liked 14741 Times on 6199 Posts
Likes Given: 2446

Default

Everything you wanted to know about polygonals
(but were afraid to ask)

https://www.usconcealedcarry.com/barrels-and-bullets-conventional-versus-polygonal-rifling/
__________________
What we have here is... failure- to communicate.
c3shooter is offline  
 
Reply With Quote
Old 08-08-2016, 09:21 PM   #6
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
CaptMidnight's Avatar
 
Join Date: May 2014
Location: Rocky Mtn. West
Posts: 3,231
Liked 2905 Times on 1694 Posts
Likes Given: 1882

Default

I think they are often confused with the Whitworth Hexagonal barrels. Why are barrels for firearms called barrels any way? Think about that one? It may surprise you.
CaptMidnight is offline  
 
Reply With Quote
Old 08-08-2016, 09:21 PM   #7
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
Mercator's Avatar
 
Join Date: Sep 2013
Posts: 11,319
Liked 6306 Times on 4159 Posts
Likes Given: 3239

Default

The type of rifling makes no difference in your practical accuracy. I like polygonal rifling because it is easier to clean. And a clean, unleaded barrel is a better shooting barrel. In that sense there is a difference.
Mercator is offline  
 
Reply With Quote
Old 08-08-2016, 09:54 PM   #8
Feedback Score: 0 reviews
 
Chainfire's Avatar
 
Join Date: Jan 2009
Posts: 4,380
Liked 2355 Times on 1352 Posts
Likes Given: 455

Default

I am no physicist, but this is what I think.

If the bullet had more mass than the rifle, and the rifle were not tied down, then the rifle would spin around the bullet.

There is a certain amount of torque applied to the rifle with the bullet spinning, but the effect is so small that it is not noticeable.
__________________
"It is better to be too skeptical then too credulous"

Carl Sagan
Chainfire is offline  
 
Reply With Quote
Old 08-08-2016, 09:55 PM   #9
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
locutus's Avatar
 
Join Date: Dec 2011
Location: Wyoming
Posts: 15,157
Liked 12736 Times on 6664 Posts
Likes Given: 12446

Default

As I said, ask 10 experts and........................
__________________
To the world, you may be only one person. but to one person you may be the world.
locutus is offline  
Dallas53 Likes This 
Reply With Quote
Old 08-08-2016, 10:59 PM   #10
Feedback Score: 0 reviews
 
Dallas53's Avatar
 
Join Date: Dec 2015
Location: Piney Woods of Central East Texas
Posts: 1,520
Liked 1666 Times on 928 Posts
Likes Given: 1933

Default

Quote:
Originally Posted by locutus View Post
As I said, ask 10 experts and........................
I agree. and ask ten people about properly breaking in a barrel, and you will get ten different opinions!
Dallas53 is offline  
locutus Likes This 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Rifling machine JayCody Gunsmithing Forum 19 10-15-2013 06:19 AM
Chrome & Barrel Rifling? Triumphman AR-15 Discussion 10 10-11-2012 04:49 AM
Remington .22 rifling depth george howard .22 Rifle/Rimfire Discussion 1 10-08-2011 12:48 PM
CZ-82 not Polygonal rifling? arco59 Curio & Relic Discussion 5 02-09-2011 02:52 AM
Rifling Question jhog AR-15 Discussion 1 01-09-2011 07:32 PM