barrel length expansion question


Firearm & Gun Forum - FireArmsTalk.com > Handguns > Revolver Handguns > barrel length expansion question

Reply
 
LinkBack Thread Tools Display Modes
Old 08-30-2012, 10:23 PM   #1
Feedback Score: 0 reviews
 
Join Date: Aug 2011
Location: Norwalk,CT
Posts: 23
Default barrel length expansion question

Will a .38 special round expand larger and more reliably out of a 4 inch barrel then a .357 magnum out of a 3 inch barrel?



__________________
circa81 is offline  
 
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 08-31-2012, 12:36 AM   #2
Supporting Member
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
Sniper03's Avatar
 
Join Date: Jun 2010
Location: Tennessee
Posts: 5,217
Liked 2558 Times on 1250 Posts
Likes Given: 1286

Default

81,

Obviously it would depend upon the ammunition you are shooting. But I do know that the 357 Mag with 3 in. Barrel produces around 1200 Ft.Lbs of energy at the muzzle and the 38 Special from a 4" Barrel produces around 960-1000 Ft. Lbs. of energy at the muzzle. So I guess we could assume that the 357 even from the 3" barrel is a more powerful cartridge than that of the 38 Special form a 4" barrel. Different rounds perform differently according to velocity. But generally speaking yes the 357 with also higher velocity and energy would have more expansion.

03



__________________

The Constitution is not an instrument for the Government to restrain the people. It is an instrument for the people to restrain the Government!
*Patrick Henry

Today, we need a nation of Minutemen, citizens who are not only prepared to take arms, but citizens who regard the preservation of freedom as the basic purpose of their daily life and who are willing to consciously work and sacrifice for that freedom."

-- John F. Kennedy

Sniper03 is offline  
danf_fl Likes This 
Reply With Quote
Old 09-01-2012, 09:20 PM   #3
Feedback Score: 0 reviews
 
Join Date: Apr 2012
Posts: 1,904
Liked 401 Times on 284 Posts
Likes Given: 9

Default

Quote:
Originally Posted by circa81
Will a .38 special round expand larger and more reliably out of a 4 inch barrel then a .357 magnum out of a 3 inch barrel?
I stole these from another forum but here ya go.



image-3368774966.jpg



image-817867115.jpg
__________________
ineverFTF is offline  
 
Reply With Quote
Old 09-06-2012, 01:16 PM   #4
Feedback Score: 0 reviews
 
Join Date: Jul 2011
Location: Gig Harbor,WA
Posts: 825
Liked 104 Times on 87 Posts
Likes Given: 219

Default

Quote:
Originally Posted by Sniper03 View Post
81,

Obviously it would depend upon the ammunition you are shooting. But I do know that the 357 Mag with 3 in. Barrel produces around 1200 Ft.Lbs of energy at the muzzle and the 38 Special from a 4" Barrel produces around 960-1000 Ft. Lbs. of energy at the muzzle. So I guess we could assume that the 357 even from the 3" barrel is a more powerful cartridge than that of the 38 Special form a 4" barrel. Different rounds perform differently according to velocity. But generally speaking yes the 357 with also higher velocity and energy would have more expansion.

03
hey, um, i think you may have mis-typed, the numbers are right, but the unit they measure is feet per second. lol
__________________
phildenton is offline  
 
Reply With Quote
Old 09-06-2012, 01:25 PM   #5
10-32
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
mountainman13's Avatar
 
Join Date: Feb 2012
Posts: 11,525
Liked 2917 Times on 1718 Posts

Default

No velocity is fps
Energy is fpe
The graph is showing energy

__________________

I don't need No stinking signature.

mountainman13 is offline  
 
Reply With Quote
Old 09-07-2012, 11:50 AM   #6
Feedback Score: 0 reviews
 
Join Date: Aug 2011
Posts: 2,265
Liked 243 Times on 192 Posts
Likes Given: 22

Default

Sure got the fps and ftlbs backwards.

__________________
hardluk1 is offline  
 
Reply With Quote
Old 09-07-2012, 03:48 PM   #7
Feedback Score: 0 reviews
 
Join Date: Jul 2011
Location: Gig Harbor,WA
Posts: 825
Liked 104 Times on 87 Posts
Likes Given: 219

Default

Quote:
Originally Posted by mountainman13 View Post
No velocity is fps
Energy is fpe
The graph is showing energy
i appreciate you tryin to be helpful, but i obviously wasnt talkin bout the graph, lol


__________________

Last edited by phildenton; 09-07-2012 at 03:55 PM.
phildenton is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Barrel length question GREGULON AR-15 Discussion 12 06-02-2012 06:11 PM
FAL Barrel length question. Mosin Gunsmithing Forum 1 10-24-2011 12:59 PM
Barrel Length Question Schmeekey AR-15 Discussion 11 08-05-2011 06:07 PM
AR-15 Carbine Length Handguard on Full Length Barrel hopps402 Gunsmithing Forum 9 03-03-2010 03:54 PM
Ruger barrel length question, yes or no. SoL .22 Rifle/Rimfire Discussion 6 08-15-2009 01:45 PM