The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: Bolt, Lever, and Pump Action

Reply
 
Thread Tools
Old July 24, 2014, 07:22 PM   #26
steveNChunter
Senior Member
 
Join Date: December 14, 2012
Location: Southern Appalachian Mtns
Posts: 1,405
Quote:
As a side note, I bet the .257 roberts necked up to 7mm would be a great cartridge. I guess that wildcat would be called the .284-.257 roberts?
That would be a 7x57 Mauser, the parent cartridge of the .257 Roberts, 6mm Remington and others. And yes, it is a great one.
__________________
"I don't understand all that I know"

"I never said half the crap that people on the internet claim I said" - Abraham Lincoln
steveNChunter is offline  
Old July 24, 2014, 07:29 PM   #27
jmr40
Senior Member
 
Join Date: June 15, 2008
Location: Georgia
Posts: 6,178
JDOxO,

Can you provide a link to the entire article you quoted earlier. It gets old trying to explain to folks that guns don't lose 50-75 fps for each inch shorter barrel. I have no idea where those numbers came from, but they get thrown around on the internet all the time. I have several other sources showing similar numbers, but would be interested in reading more and to have another source to prove the facts.

I've seen lots of these tests and 2 are ever exactly alike. It depends on the individual barrel and load. Most of the data I see on 30-06/308 shows about 15-25 fps loss, 270 and similar around 20-30 fps and most 300/7mm magnums 25-35 fps. At times you'll see slightly more or slightly less.

The interesting part is that there is more difference than that between individual barrels of the same length. It is not unheard of for an individual 22" barrel to shoot faster than another 24" barrel using the same ammo.
jmr40 is offline  
Old July 24, 2014, 07:36 PM   #28
steveNChunter
Senior Member
 
Join Date: December 14, 2012
Location: Southern Appalachian Mtns
Posts: 1,405
Deleted post
steveNChunter is offline  
Old July 24, 2014, 07:38 PM   #29
hammie
Senior Member
 
Join Date: March 18, 2009
Location: Glendale, AZ
Posts: 592
@steveNChunter: I'm thinking, instead, that it would be a .275 Rigby. LOL

Edit: Although...it just popped into my head from my dim memory, that the .257 Roberts, would not be the 7x57, if it were necked up. I think Ned Roberts' version had a different shoulder angle. When Remington commercialized Roberts' wildcat, they used the shoulder angle of the original 7x57. So the .257 Remington Roberts, necked up, would equal the 7x57.

Last edited by hammie; July 24, 2014 at 07:45 PM.
hammie is offline  
Old July 24, 2014, 07:43 PM   #30
Jim Watson
Senior Member
 
Join Date: October 25, 2001
Location: Alabama
Posts: 11,419
Once upon a time, I bought a Ruger 77 .25-06 because it had the only 24" barrel in a non-magnum caliber.

Yawn.
The extra velocity is insignificant at ordinary ranges.
Jim Watson is online now  
Old July 24, 2014, 07:53 PM   #31
hammie
Senior Member
 
Join Date: March 18, 2009
Location: Glendale, AZ
Posts: 592
@jimwatson: Ya know...whether we're talking about the .25-06 or the .257 roberts, in 22 or 24 inch barrels, they're both great cartridges for most of north american big game hunting and the difference is probably not worth a coin flip. The .25's would not be my first choice for elk, but if that's all I had, I would load up a partition, grand slam, or other premium bullet and not feel too under-gunned.
hammie is offline  
Old July 24, 2014, 08:23 PM   #32
steveNChunter
Senior Member
 
Join Date: December 14, 2012
Location: Southern Appalachian Mtns
Posts: 1,405
@ Hammie-If you lived across the pond in the UK, .275 Rigby would be the proper name for the 7x57. And yes, the Roberts shoulder angle is slightly different.
__________________
"I don't understand all that I know"

"I never said half the crap that people on the internet claim I said" - Abraham Lincoln

Last edited by steveNChunter; July 24, 2014 at 09:16 PM.
steveNChunter is offline  
Old July 24, 2014, 09:50 PM   #33
Jim Watson
Senior Member
 
Join Date: October 25, 2001
Location: Alabama
Posts: 11,419
I once saw a .275 Rigby, accompanied by a letter to Rigby from W.D.M. Bell who was concerned that Rigby's adoption of a 145 grain semispitzer bullet might lead them to a slower rifling twist that would not handle the standard 175 grain roundnose he found to be so effective.
Jim Watson is online now  
Old July 24, 2014, 09:54 PM   #34
hammie
Senior Member
 
Join Date: March 18, 2009
Location: Glendale, AZ
Posts: 592
@steveNChunter: Thanks for confirming my memory about the .257 rbts. At my age, things begin to fade away.

When you pick up the two volumes of P.O. Ackley's Handbook, and read about all the experimentation and wild-catting which was done 70-90 years ago, you soon realize that there's not too much new under the sun.

@jimwatson: That's quite a bit of interesting history. Didn't Bell start out with a 6.5x54 MS and then move up to a 7x57?
hammie is offline  
Old July 24, 2014, 10:08 PM   #35
Jim Watson
Senior Member
 
Join Date: October 25, 2001
Location: Alabama
Posts: 11,419
As I recall, Bell started his smallbore career with a 6.5 Mannlicher (.256 in English terminology.) but abandoned it after some failure of Austrian ammo.
He shot .275 Rigby for a good while but later up gunned to .318 Westley Richards.
One source says he went back to .275 because .318 ammo was not as good quality. See more at: http://www.chuckhawks.com/bell_elephants.htm

He said the new .308 Winchester looked promising, introduced only two years before his death.

Last edited by Jim Watson; July 24, 2014 at 10:14 PM.
Jim Watson is online now  
Old July 25, 2014, 05:52 AM   #36
NWCP
Senior Member
 
Join Date: December 24, 2006
Posts: 1,812
I have a Weatherby Vanguard series 2 in 25-06. It came with a 24" barrel. I'm pleased with the Vanguard and enjoy shooting it. Great trigger and accuracy. I too had always wanted a quarter bore. Not that I needed it, but I really wanted it. I'm glad I got one. I hope to take it on a guided hunt for antelope. I also intend to use it for some long range coyote hunting. Not worried about the pelts so the 25-06 in 85-100 grain should work just fine. There are manufacturers out there that make the 25-06 in a 24" barrel. The Vanguard isn't all that expensive. You might take a look at it.
NWCP is offline  
Old July 25, 2014, 05:12 PM   #37
Guv
Senior Member
 
Join Date: February 24, 2012
Location: South Texas
Posts: 1,090
Bud's Gun's shows a new 24" barrel Ruger 77 Hawkeye. Always figured a 25-06 needed a longer barrel just like a 7mm Magnum did.
Guv is online now  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:22 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.08635 seconds with 9 queries