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circa81 08-30-2012 10:23 PM

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?

Sniper03 08-31-2012 12:36 AM

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

ineverFTF 09-01-2012 09:20 PM

2 Attachment(s)
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.



Attachment 56409



Attachment 56410

phildenton 09-06-2012 01:16 PM

Quote:

Originally Posted by Sniper03 (Post 922119)
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

mountainman13 09-06-2012 01:25 PM

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

hardluk1 09-07-2012 11:50 AM

Sure got the fps and ftlbs backwards.

phildenton 09-07-2012 03:48 PM

Quote:

Originally Posted by mountainman13 (Post 930337)
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


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