Long Range Hunting Online Magazine


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

Rifles, Bullets, Barrels & Ballistics Applied Ballistics


Reply

6.5-300rum

 
LinkBack Thread Tools Display Modes
  #8  
Old 12-05-2012, 01:01 AM
Platinum Member
 
Join Date: Mar 2007
Location: Montana
Posts: 1,404
Re: 6.5-300rum

Quote:
Originally Posted by Lefty7mmstw View Post
I was looking at the 257 rum for about long enough to sneeze a few years ago, but as I had to trade my 7rum at 600 shots because of wear, I thought better of it and stayed away. The throuble is I'm wanting another 7 rum as a dedicated 140 grain bullet tosser. I need to work with 130-140 grain pills with my 7stw more before I play the rum game though.


If I were you I'd look at the 6.5 stw as it can be made from a rem or win in 264 without playing with the action; you only need to re-ream the chamber.
Is a 300 Win Mag not long enough to build the rum on?

Steve
__________________
To hunt... or not to hunt...? What a stupid question.
Reply With Quote
  #9  
Old 12-05-2012, 01:14 AM
Platinum Member
 
Join Date: May 2012
Location: N.D.
Posts: 3,088
Re: 6.5-300rum

Quote:
Originally Posted by RockyMtnMT View Post
Is a 300 Win Mag not long enough to build the rum on?

Steve
length is fine but check your clearances from the mag to the top; the rails might be to narrow and need to be widened. Better to buy a action set up for a rum already or go with the belted case
Reply With Quote
  #10  
Old 12-05-2012, 09:54 AM
Platinum Member
 
Join Date: Feb 2010
Location: Gillette, WY
Posts: 2,706
Re: 6.5-300rum

If you going to mag feed it, install a Wyatt's Extended Box magazine. With a 6.5RUM you are going to be chasing the lands before too long, the extra mag space will be a HUGE help 300-400 rounds down the road.

With a cartridge like that, I would be very seriously thinking about rolling with a single shot follower. Then you can run any bullet at pretty much any length you wish. The 6.5STW is also a lazer beam, LTLR reported 3700fps with 130's, that's enough to make a guy go >> Of course the 6.5AM shows 140's at well over 3500fps...


T
__________________
"I, however, view ethics as an individual decision. My ethics are mine - and I won't explain or justify them to anyone else. I seek nobody's approval, just that of my own conscience. "

Reply With Quote
  #11  
Old 12-05-2012, 02:45 PM
Official LRH Sponsor
 
Join Date: Aug 2011
Location: Alvarado TX
Posts: 331
Re: 6.5-300rum

Accident
Reply With Quote
  #12  
Old 12-05-2012, 02:47 PM
Official LRH Sponsor
 
Join Date: Aug 2011
Location: Alvarado TX
Posts: 331
Re: 6.5-300rum

I have a 6.5-300ultra... I wouldnt build one again.. And my ressoning has NOTHING to do with barrel life.

Your ES will be around 50-80fps and it is VERY finiky.. im shooting the 129sst at 3550fps out of a 26" barrel. You can push it a little more but no need.. It just makes it more finiky.. Its VERY hard on brass.. Not to mention the brass prep you have to do...

Now it does do what it is suppose to do.. Its flat and has the power.

Ive been working on a wildcat off the 257wby case. Neck it up to 6.5 and improve to 35*. I know.. Its only about 1/8 longer than the 264 win mag. And about a 1/4 less than the 300 win. But its showing great things thus far.. 142smk at 3350 fps with an ES of 12 and EASY 1/2 moa at 300 yards. This is out of a 26" pipe...Using retumbo. You could gain more with 869 i bet..

So why would i go through all that crap to gain very little.. At the end of the day the other end has no idea about the added 100fps.

Im going to rechamber my 6.5 ultra to 6.5 wby imp.

Regardless Internet numbers i can tell you 3500fps with a 140gr pill is tough.. Now a 30" barrel and cool temps sure... But not easy to come by... My max working load with the 142smk in my rifle is 3450ish
Reply With Quote
  #13  
Old 12-05-2012, 03:23 PM
Platinum Member
 
Join Date: Feb 2010
Location: Gillette, WY
Posts: 2,706
Re: 6.5-300rum

Yup, those "internet numbers" as directly quoted from Allen Precision were in fact achieved from a 30" barrel. That is a LOT of powder to burn in a small bore, anything under 30 is probably a waste of time. I would imagine a 26" bbl would have one heck of a muzzle flash!

It sounds like the WBY wildcat is right in there with the 6.5 STW. But you should be burning a good bit less powder to do it.

High horsepower cartridges will always be finicky, that is the nature of the beast. Just as a highly modified muscle car will require more maintenance than you grocery getter. You have to pay to play.


t
__________________
"I, however, view ethics as an individual decision. My ethics are mine - and I won't explain or justify them to anyone else. I seek nobody's approval, just that of my own conscience. "

Reply With Quote
  #14  
Old 12-05-2012, 05:22 PM
Official LRH Sponsor
 
Join Date: Aug 2011
Location: Alvarado TX
Posts: 331
Re: 6.5-300rum

Saw your thread on your 6.5 wsm.. Nice rifle!

The wby wildcat is nothing special its just MUCH more efficient than 6.5 ultra cannons..
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: 6.5-300rum
Thread Thread Starter Forum Replies Last Post
300RUM vs 30-378 cramer74 Long Range Hunting & Shooting 18 11-27-2009 02:06 PM
300rum curry792 Specialty Handgun Hunting 6 10-19-2009 09:18 PM
300RUM help bebberson Reloading 7 09-11-2009 11:59 AM
New 300rum JP Hunter Gunsmithing 5 01-15-2008 10:41 PM
Help with 300RUM........ TeamSasquatch The Basics, Starting Out 7 06-14-2002 05:51 PM


All times are GMT -5. The time now is 12:41 AM.


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