Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels and Ballistics


Reply

260 barrel length

 
LinkBack Thread Tools Display Modes
  #1  
Old 07-04-2013, 11:42 AM
Silver Member
 
Join Date: May 2010
Location: Central Ohio
Posts: 253
260 barrel length

Have done a lot of searching of post and can't find answer I'm looking for:
What would be minimum barrel length to push 140 hybrids to 3000+ fps out of a
.260 without having to push pressure limit of an action? Planning on using a short action but not worried about oal length as will probably single load anyways.
Thanks, Jeff
Reply With Quote
  #2  
Old 07-04-2013, 11:50 AM
Platinum Member
 
Join Date: Feb 2011
Location: Cincinnati, Ohio
Posts: 1,893
Re: 260 barrel length

26" on almost all of my rifles
Reply With Quote
  #3  
Old 07-04-2013, 12:14 PM
Gold Member
 
Join Date: Dec 2009
Posts: 876
Re: 260 barrel length

Quote:
Originally Posted by 375fan View Post
Have done a lot of searching of post and can't find answer I'm looking for:
What would be minimum barrel length to push 140 hybrids to 3000+ fps out of a
.260 without having to push pressure limit of an action? Planning on using a short action but not worried about oal length as will probably single load anyways.
Thanks, Jeff
I have 26" barrels on all of my 6.5's. Though I tend to agree that 26" is a good starting point for best performance from the 6.5's, I think you will have to go to at least a 30" barrel to get anywhere near the velocity you are chasing. Even then, you are going to have to push pressures to get to a level that is not likely to be anywhere near 3000 fps.

3000+ from a .260 case? With 140's? Without pressure? Even a 6.5-284 has to be pushed hard to get there. If you do it from a .260 case, you are not going to do it at anything near sane pressure levels.

Do yourself a favor and re-think either your desired case capacity or your velocity goals. They are not compatible.
Reply With Quote
  #4  
Old 07-04-2013, 12:14 PM
Silver Member
 
Join Date: Dec 2004
Location: Ar.
Posts: 102
Re: 260 barrel length

No way can I hit 3k out of my 260 with a Krieger 28" 8.5 twist at 550'.Running the 140 berger Hybrids with 44gr of H4350 and SMK 142gr with 44.3gr of H4350 I get 2850fps out of both loads with a es 10-11.The 44.3gr load is hard on the brass.
Reply With Quote
  #5  
Old 07-04-2013, 12:15 PM
Platinum Member
 
Join Date: Aug 2003
Location: NC, oceanfront
Posts: 3,268
Re: 260 barrel length

I don't know that even 28-30" would get you there without exceeding SAAMI max.
Reply With Quote
  #6  
Old 07-04-2013, 03:03 PM
Platinum Member
 
Join Date: Jan 2008
Posts: 1,036
Re: 260 barrel length

Unless you are shooting at least a 26" barrel you have to push a 264 Win Mag a little to get 3000 fps with 140 gr bullets.
Reply With Quote
  #7  
Old 07-05-2013, 01:13 AM
Gold Member
 
Join Date: Apr 2012
Location: California Central Coast
Posts: 906
Re: 260 barrel length

You can't get there from here.
__________________
Fred Seaman
“Ask, Listen, Learn, Grow”
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Current Poll
Do you archery hunt for elk?
YES - 32.03%
74 Votes
NO - 51.08%
118 Votes
Not yet, but I plan to. - 16.88%
39 Votes
Total Votes: 231
You may not vote on this poll.

All times are GMT -5. The time now is 01:33 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC